Vermilion Peak - Mountain Field Guide

Vermilion Peak

Sunrise over snow capped San Juan Mountains near Ridgway Colorado | Yaya Ernst

Rising above Trout Lake and the high basins south of Telluride, Vermilion Peak is one of the most prominent thirteeners in Colorado’s San Juan Mountains. Modern LiDAR measurements place its summit at approximately 13,907 feet (4,239 meters), making it one of Colorado’s 100 highest ranked mountains.

Vermilion is much more topographically significant than many peaks of similar elevation. It rises approximately 2,115 feet (645 meters) above its key saddle and has more than 9 miles (14.6 kilometers) of isolation.

Its Nearest Higher Neighbor and line parent is Gladstone Peak, approximately nine miles to the west-northwest.

Vermilion Peak also holds an important political-geography distinction:

It is the highest point in San Juan County, Colorado.

The mountain stands on the boundary between San Juan and San Miguel counties and between the San Juan and Grand Mesa, Uncompahgre and Gunnison national forests.

Unlike many of Colorado’s high mountains, Vermilion was built largely from volcanic rocks. Historical U.S. Geological Survey mapping describes characteristic cliffs of San Juan Tuff capped by a flow historically called Treasure Mountain quartz latite.

These rocks belong to the enormous Oligocene volcanic province that created much of the San Juan Mountains roughly 25–35 million years ago.

Today, the mountain is a popular objective among hikers completing Colorado’s Centennial Peaks, with the most common summer approach using the Lake Hope area and the southeast ridge.

⚡ Fast Facts

Feature	Details
Country	United States
State	Colorado
Counties	San Juan and San Miguel
Mountain Range	San Juan Mountains
Greater Range	Rocky Mountains
Protected Lands	San Juan National Forest / Grand Mesa, Uncompahgre and Gunnison National Forests
Elevation	13,907.1 ft / 4,238.9 m
Traditional Elevation	13,894–13,900 ft
Prominence	2,115.4 ft / 644.8 m
Isolation	9.08 mi / 14.61 km
Nearest Higher Neighbor (NHN)	Gladstone Peak
Line Parent	Gladstone Peak
Key Col	Ophir Pass, approx. 11,792 ft
Coordinates	37.79946° N, 107.82846° W
USGS Quadrangle	Ophir
Mountain Type	Eroded volcanic mountain
Primary Rocks	Oligocene volcanic tuffs and lava flows
Volcanic?	Built of volcanic rocks, but not a modern volcanic cone
First Recorded Ascent	Not reliably documented
Common Summer Route	Southeast Ridge / Lake Hope approach
Difficulty	Class 2+
Notable Distinction	High point of San Juan County
Colorado Centennial Rank	Approximately #71 with current LiDAR data

🗺️ Where Is Vermilion Peak?

Vermilion Peak rises in southwestern Colorado between the mountain communities of:

Telluride
Ophir
Silverton

The peak sits northeast of Trout Lake and east of the famous Lizard Head Pass corridor.

Its summit lies directly on the boundary between:

San Miguel County
San Juan County

That boundary also separates large portions of two national forest systems.

The western slopes drain toward the San Miguel River system.

Eastern drainage eventually reaches Mineral Creek and the Animas River.

This location places Vermilion within one of the most rugged and scenic portions of the western San Juan Mountains.

Nearby summits include:

Golden Horn
Fuller Peak
Beattie Peak
Pilot Knob
U.S. Grant Peak
San Miguel Peak
Gladstone Peak

Several of these mountains form a spectacular high ridge complex above the Lake Hope and Ice Lake basins.

📏 Updated Elevation: 13,907 Feet

Older maps commonly list Vermilion Peak at approximately:

13,894 feet

13,900 feet.

Modern LiDAR-derived elevation data gives:

13,907.1 feet / 4,238.9 meters

That seemingly small difference changes its numerical position among Colorado’s highest summits.

Current Peakbagger and 14ers.com rankings place Vermilion around:

#71 among Colorado’s ranked high peaks

using modern LiDAR data.

It is also one of the highest mountains in Colorado that does not reach the famous 14,000-foot threshold.

Only about 93 vertical feet separate Vermilion from fourteener status.

🏔️ Colorado Centennial Peak

Vermilion Peak belongs to the Colorado Centennial Peaks.

The Centennials are Colorado’s 100 highest ranked mountains, generally using a minimum prominence threshold to distinguish separate peaks.

Completing them is a much more demanding project than simply climbing the state’s fourteeners.

Many Centennial thirteeners have:

No maintained summit trail
Longer approaches
More complicated navigation
Rough roads
Loose rock
Fewer climbers

Vermilion is one of the better-known San Juan Centennial Peaks because its prominence, scenery and location make it an appealing objective independent of a checklist.

📐 More Than 2,100 Feet of Prominence

Vermilion Peak has approximately:

2,115 feet / 645 meters of topographic prominence.

Its key saddle is Ophir Pass, at roughly:

11,792 feet.

This makes Vermilion exceptionally prominent for a Colorado thirteener.

Many higher Colorado peaks have substantially less topographic independence.

Prominence measures the vertical distance a climber would have to descend from a summit before reaching terrain connected to any higher mountain.

Vermilion therefore rises as a major mountain mass rather than a small high point on a larger ridge.

🧭 Nearest Higher Neighbor: Gladstone Peak

Vermilion Peak’s Nearest Higher Neighbor is Gladstone Peak.

Gladstone rises west-northwest of Vermilion near the Wilson group.

Current measurements give Gladstone an elevation of approximately:

13,922 feet

That makes it only about 15 feet higher than Vermilion.

Yet higher terrain does not appear until approximately:

9.08 miles / 14.61 kilometers

from Vermilion’s summit.

Gladstone is therefore both:

Vermilion’s nearest higher terrain
Its line parent

This combination of high elevation and long isolation helps explain Vermilion’s visual dominance.

🏆 High Point of San Juan County

Vermilion Peak is the highest point of San Juan County.

That distinction can initially seem surprising.

San Juan County contains an extraordinary concentration of high mountains around Silverton.

Yet none of its summits rises higher within the county boundary.

Vermilion stands directly on the San Juan–San Miguel county line.

This also makes it an important objective for hikers attempting Colorado’s county high points.

San Juan County itself has one of the highest average elevations of any county in the United States.

Silverton, its county seat, sits above 9,300 feet.

Much of the county consists of rugged mountain terrain.

🔴 Why Is It Called Vermilion Peak?

The name is generally associated with the mountain’s reddish or orange-red appearance, particularly when warm sunlight illuminates its cliffs.

Vermilion is traditionally a vivid red-orange color.

The name is appropriate for a mountain whose weathered volcanic rocks can display:

Rust
Red
Orange
Brown
Purple-gray

tones.

Iron-bearing minerals altered by weathering and hydrothermal processes can contribute to the colorful appearance common throughout the western San Juan Mountains.

The region surrounding Telluride, Ophir and Silverton is famous for intensely colored mountains.

Vermilion Peak fits naturally into that landscape.

🪨 Geology of Vermilion Peak

Vermilion Peak’s geology is especially important because older descriptions sometimes incorrectly identify the mountain as primarily sedimentary.

It is fundamentally a volcanic mountain.

Historical USGS studies specifically describe Vermilion Peak as displaying:

cliffs of San Juan Tuff capped by a flow of Treasure Mountain quartz latite.

Modern geological nomenclature has evolved since those early studies, but the central story remains the same.

The mountain consists largely of volcanic rocks created during the immense Oligocene San Juan volcanic episode.

🌋 The San Juan Volcanic Field

Roughly 35 million years ago, southwestern Colorado looked completely different.

Large volcanoes began erupting across the region.

Early activity produced enormous quantities of:

Andesitic lava
Volcanic breccia
Ash
Pyroclastic debris

These materials accumulated into a vast volcanic plateau.

Then the eruptions became even larger.

Between roughly 30 and 26 million years ago, colossal explosive eruptions released enormous ash flows across the landscape.

Magma chambers emptied so rapidly that the ground above them collapsed.

This created a series of gigantic calderas.

💥 Calderas of the San Juan Mountains

The San Juan volcanic field contains one of the most remarkable concentrations of ancient calderas in North America.

Major caldera systems formed around areas now including:

Silverton
Lake City
Creede
Central San Juan Mountains
Western San Juans

Some ash-flow eruptions released hundreds or even thousands of cubic kilometers of volcanic material.

For comparison, the 1980 eruption of Mount St. Helens released only a tiny fraction of those volumes.

The modern San Juan Mountains are therefore largely the deeply eroded remains of a once enormous volcanic landscape.

🧱 San Juan Tuff

One of the principal rock units historically described on Vermilion Peak is San Juan Tuff.

Tuff forms when volcanic ash and debris accumulate and become consolidated into rock.

Some ash flows are so hot when deposited that particles partially weld together.

This produces welded tuff, which can form resistant cliffs.

Historical photographs of Vermilion Peak specifically show these volcanic cliffs.

Repeated freeze-thaw weathering has since broken the rock into:

Talus
Blocks
Scree
Loose ledges

that now cover much of the mountain.

🌋 Treasure Mountain Quartz Latite

Older USGS literature describes an upper flow at Vermilion as Treasure Mountain quartz latite.

Quartz latite is an intermediate-to-silicic volcanic rock.

Modern volcanic classification and unit names have changed considerably since those early geological surveys.

The broader significance remains clear:

Vermilion’s upper mountain was built through multiple volcanic events rather than one simple eruption.

Different lava and ash units accumulated over time.

Later erosion exposed those layers as cliffs and ridges.

❌ Vermilion Peak Is Not an Active Volcano

Describing Vermilion as a volcanic mountain does not mean it is an active volcanic cone.

The volcanoes that produced its rocks disappeared millions of years ago.

Vermilion Peak is an erosional remnant of an ancient volcanic landscape.

Its modern summit was created through:

Volcanic eruptions
Caldera-related activity
Tectonic uplift
Glacial erosion
River erosion
Freeze-thaw weathering

The mountain’s shape is therefore much younger than the rock from which it is built.

⛏️ Hydrothermal Alteration

Volcanic activity did not end when eruptions stopped.

Hot fluids continued circulating through fractured rock.

These hydrothermal fluids altered minerals and deposited metals.

The western San Juan Mountains later became famous for deposits containing:

Gold
Silver
Lead
Zinc
Copper

Mining districts developed around Silverton, Telluride and Ophir.

USGS research shows extensive hydrothermal alteration throughout this part of the San Juans.

That alteration contributes to the colorful:

Red
Yellow
Orange
White
Gray

rock seen on many surrounding peaks.

⛏️ Mining Country

Vermilion Peak stands at the center of one of Colorado’s great historic mining landscapes.

Nearby mountains contain remnants of:

Mines
Prospects
Tramways
Roads
Cabins
Tailings

Mining transformed the region during the late nineteenth and early twentieth centuries.

Telluride and Silverton grew largely because of mineral extraction.

The network of rough mountain roads now used by hikers and four-wheel-drive travelers often follows routes originally constructed for mining.

Visitors should never enter abandoned mines.

Hazards can include:

Collapses
Bad air
Hidden shafts
Unstable explosives
Contaminated water

Historical structures should also be left undisturbed.

🧊 Glaciers Shaped the Modern Mountain

The volcanic eruptions created Vermilion’s rock.

Glaciers created much of its modern form.

During the Pleistocene ice ages, glaciers filled valleys throughout the San Juan Mountains.

Ice repeatedly flowed past the slopes surrounding Vermilion.

Glaciers:

Deepened valleys
Excavated basins
Created cirques
Steepened mountain walls
Transported rock
Deposited moraines

The Lake Hope and Trout Lake landscapes preserve evidence of this glacial history.

🌊 Trout Lake

Trout Lake lies southwest of Vermilion Peak along Colorado Highway 145.

The lake provides one of the classic views of the mountain group.

From the surrounding area, visitors can see:

Vermilion Peak
Golden Horn
Pilot Knob
Neighboring volcanic ridges

Autumn is particularly scenic when aspen forests turn gold beneath the high peaks.

Trout Lake sits close to the route used to reach the Lake Hope Trailhead.

For visitors who do not want to climb Vermilion, the lake provides an excellent low-effort viewpoint.

💧 Hope Lake

Hope Lake lies northwest of Vermilion Peak at approximately 11,800 feet.

The Forest Service’s Hope Lake Trail #410 is one of the most popular hikes near Telluride.

The route climbs from spruce-fir forest into alpine meadows.

In summer, the area is known for abundant wildflowers.

From portions of the trail, Vermilion rises dramatically above the surrounding terrain.

Hope Lake itself occupies a high glacial basin beneath the peaks.

The maintained trail is a destination in its own right.

Summiting Vermilion requires leaving the ordinary hiking route and entering significantly rougher alpine terrain.

🥾 Climbing Vermilion Peak

One common summer summit route uses the Lake Hope area and Southeast Ridge.

The route is generally rated:

Class 2+

under dry summer conditions.

That means hikers should expect substantial off-trail travel and scrambling but not sustained technical rock climbing.

Typical terrain includes:

Steep tundra
Talus
Scree
Loose volcanic rock
Ridge walking
Hands-on scrambling

The exact route chosen can change the total mileage and elevation gain considerably.

🥾 Lake Hope Trailhead

A common approach begins from the Lake Hope Trailhead near Trout Lake.

The trailhead sits at approximately:

10,700–10,750 feet

Access follows forest roads branching from the Trout Lake area.

Road conditions can change.

High-clearance vehicles are commonly recommended for reaching the upper trailhead comfortably.

The Forest Service may impose temporary:

Road closures
Fire restrictions
Trail closures

so current conditions should always be checked before traveling.

📊 Typical Route Statistics

One popular itinerary combines Vermilion with several nearby thirteeners.

A representative circuit can cover approximately:

9 miles round trip

with roughly:

4,400–4,500 feet of elevation gain.

Potential summits on the larger circuit include:

Unnamed 13,302
Beattie Peak
Fuller Peak
Vermilion Peak
Golden Horn

Climbers do not need to include all these peaks.

A Vermilion-focused itinerary can be adjusted according to:

Trailhead
Route choice
Weather
Time
Fitness

The multi-peak ridge is popular among hikers pursuing Colorado’s ranked thirteeners.

🧗 Southeast Ridge

The Southeast Ridge provides relatively straightforward access compared with Vermilion’s steeper northern terrain.

The route involves sustained Class 2 and Class 2+ movement.

Expect:

Loose rock
Narrower ridge sections
Occasional hands-on scrambling
Route-finding

The volcanic rock can be fractured.

Test holds before trusting them.

Although the standard route is much easier than Colorado’s technical thirteeners, a fall on steep loose terrain can still have serious consequences.

⚠️ Loose Volcanic Rock

Loose rock is one of Vermilion’s primary climbing hazards.

Historical climbing reports describing the northeast arête specifically mention poor rock quality.

Volcanic rock in the San Juans can fracture into unstable blocks and plates.

Hikers should:

Test handholds
Avoid traveling directly beneath other parties
Wear helmets on steeper routes where rockfall exposure is substantial
Move carefully across scree
Never intentionally kick rocks downhill

Even a small stone can become dangerous after accelerating down a steep slope.

🧗 Northeast Arête

Vermilion also has more technical possibilities.

Historical American Alpine Club reports document an ascent of the Northeast Arête.

The route was described as relatively short but unpleasant because of loose rock.

This character remains typical of many technical routes on western San Juan volcanic peaks.

Climbers considering nonstandard lines should expect:

Loose rock
Limited protection
Difficult route-finding
Serious exposure

The ordinary Southeast Ridge is the appropriate choice for most nontechnical peakbaggers.

🏆 First Ascent

A reliably documented first ascent of Vermilion Peak has not been established.

The mountain was already well known and named by the early twentieth century.

Henry Gannett’s 1906 Gazetteer of Colorado listed Vermilion Peak at approximately 13,870 feet.

USGS geologists were also photographing and mapping the mountain during the early geological surveys of the San Juan region.

Given:

Mining activity
Geological surveying
Nearby roads and settlements

the summit may have been reached considerably earlier.

Without a reliable primary climbing record, assigning a specific individual or date would be speculative.

🌩️ Summer Thunderstorms

Thunderstorms are one of the greatest hazards on Vermilion Peak.

The San Juan Mountains receive frequent summer monsoon moisture.

Storms can develop rapidly during July and August.

Hazards include:

Lightning
Hail
Heavy rain
Strong wind
Sudden temperature drops
Reduced visibility

The upper ridge provides almost no shelter.

An early start is strongly recommended.

Climbers should aim to descend exposed terrain before the typical afternoon storm cycle begins.

⚡ Lightning Above Treeline

Lightning is particularly dangerous on a high isolated mountain such as Vermilion.

If thunder is audible, lightning is already close enough to be dangerous.

Do not remain on:

Summit ridges
High points
Exposed rock outcrops

to wait for a storm to improve.

Descending before the storm arrives is far safer than trying to react once lightning is already striking nearby.

❄️ Snow

Snow can remain on Vermilion well into summer.

Fresh snow may return by early autumn.

Snow changes Class 2+ terrain dramatically.

Steep slopes can require:

Traction
Ice axe
Snow-climbing skill
Avalanche assessment

Cornices may develop along ridges during winter and spring.

An easy dry summer route should never be assumed to remain easy under snow.

📅 Best Time to Climb

The normal hiking season is generally:

July through September

although annual snowpack determines the exact window.

🌨️ June

Snow often remains extensive at high elevations.

🌼 July

Wildflowers emerge and ridge routes begin drying.

Thunderstorm risk increases.

☀️ August

Often provides good snow-free climbing, although monsoon storms remain common.

🍂 September

Cooler temperatures and autumn colors can create excellent conditions.

Days become shorter and early snowstorms become possible.

❄️ October Through May

Winter mountaineering conditions dominate.

Avalanche hazards and deep snow require specialized skills.

🌿 Flora and Fauna

Vermilion Peak rises through two of Colorado’s most distinctive high-elevation ecosystems:

Subalpine forest
Alpine tundra

The maintained Hope Lake approach begins among trees before climbing into open meadow and eventually barren high mountain terrain.

The forests surrounding Vermilion support hundreds of wildlife species across the larger San Juan and Uncompahgre forest systems.

Above treeline, fewer species survive—but those that do are extraordinarily well adapted to alpine life.

🌲 Spruce-Fir Forest

The Hope Lake Trail begins in a classic spruce-fir forest.

Important trees include:

Engelmann spruce
Subalpine fir

These forests tolerate:

Deep snow
Cold winters
Short growing seasons
High elevation

Near treeline, trees become smaller and increasingly distorted by wind.

Eventually they form krummholz, stunted woody vegetation hugging the ground.

Above approximately 11,500 feet, continuous forest largely disappears.

🌼 Wildflower Meadows

The Hope Lake area is especially famous for wildflowers.

The Forest Service describes it as one of the popular wildflower hikes near Telluride.

Common high-country flowers in the surrounding San Juans can include:

Colorado blue columbine
Indian paintbrush
Lupine
Alpine forget-me-not
Old-man-of-the-mountain
Sky pilot
Cinquefoil
Mountain avens

Exact blooming dates vary with annual snowmelt.

Late snow can push peak flowering well into summer.

🌱 Alpine Tundra

Above treeline, the landscape becomes alpine tundra.

Plants survive by remaining extremely low to the ground.

Adaptations include:

Compact growth
Hairy leaves
Deep roots
Rapid flowering
Cushion-like forms

Conditions are severe.

Plants must withstand:

Strong wind
Frost
Intense sunlight
Snow
Thin soils

Alpine vegetation grows very slowly.

A single footprint can damage plants that required years to become established.

Travel on durable rock whenever possible.

🐿️ American Pika

The American pika is one of the characteristic animals of Vermilion’s talus fields.

These small rabbit relatives live among broken rocks.

Pikas do not hibernate.

During summer they collect:

Grasses
Flowers
Leaves

and store them in dry “hay piles.”

The food supplies sustain them beneath the snow during winter.

Their sharp calls are frequently heard from talus before the animal itself is visible.

🐿️ Yellow-Bellied Marmot

Yellow-bellied marmots also occupy rocky slopes and alpine meadows.

Unlike pikas, marmots hibernate through winter.

During the short summer they spend much of their time:

Feeding
Sunbathing
Watching for predators

Marmots can become habituated around popular hiking areas.

Never feed them.

Human food can disrupt natural behavior.

🐏 Rocky Mountain Bighorn Sheep

Rocky Mountain bighorn sheep occur in high mountain terrain across Colorado.

They favor:

Open slopes
Grasslands
Rocky escape terrain
Alpine tundra

Their specialized hooves allow impressive movement across steep rock.

Bighorn sheep may move to lower elevations during winter but can use high alpine terrain extensively during summer.

Visitors should observe them from a distance.

🐐 Mountain Goats

Mountain goats also occur within the San Juan Mountains.

They are exceptionally capable climbers, using steep alpine rock to escape predators.

Mountain goats are not native to Colorado.

They were introduced into the state during the twentieth century.

Today they have become familiar inhabitants of several high mountain areas.

Do not feed or approach them.

🦌 Elk

Elk use the broader San Juan landscape seasonally.

During summer, animals may move into high mountain meadows.

Winter snow generally drives many elk toward lower elevations.

The lower forest and meadow zones around Vermilion provide substantially better habitat than its barren upper ridges.

🐦 White-Tailed Ptarmigan

The white-tailed ptarmigan is one of Colorado’s most specialized alpine birds.

It spends its entire annual cycle in high mountain habitat.

Its plumage changes with the seasons:

Brown and gray in summer
Mostly white in winter

This provides camouflage against both rock and snow.

Ptarmigan feed on low-growing alpine plants.

Because they rely so heavily on tundra, they are among the species potentially vulnerable to a warming alpine climate.

🐦 Brown-Capped Rosy-Finch

The brown-capped rosy-finch is another Colorado alpine specialist.

These birds nest among cliffs and rocky high-elevation terrain.

They forage across:

Snowfields
Talus
Alpine tundra

Colorado contains a significant share of the remaining alpine habitat in the contiguous United States, making places such as Vermilion Peak important refuges for specialized high-country wildlife.

🌡️ Climate Change and Alpine Habitat

Colorado Parks and Wildlife identifies alpine habitat as particularly vulnerable to climatic change.

As temperatures rise, lower-elevation vegetation can gradually move uphill.

But alpine species cannot simply continue moving indefinitely.

Eventually:

the mountain runs out.

Species such as:

Pika
White-tailed ptarmigan
Brown-capped rosy-finch

therefore receive particular conservation attention.

Vermilion’s broad tundra and talus environment contributes to this increasingly important alpine habitat network.

💧 Watersheds

Vermilion Peak stands near an important drainage divide.

Water from different sides of the mountain follows separate river systems.

Western Slopes

Water flows toward tributaries of the:

San Miguel River → Dolores River → Colorado River

Eastern Slopes

Water enters:

Mineral Creek → Animas River → San Juan River → Colorado River

Both sides ultimately reach the Colorado River system and historically flowed toward the Gulf of California.

The summit therefore divides major tributaries while remaining entirely within the Pacific watershed.

🏘️ Telluride

Telluride is the best-known community near Vermilion Peak.

The former mining town now serves as a major:

Ski destination
Mountain recreation center
Festival town
Hiking base

Vermilion lies southeast of Telluride beyond Ophir and the Trout Lake corridor.

The mountain is not generally visible from every part of downtown because surrounding ridges block portions of the skyline.

Driving south along Highway 145 reveals increasingly dramatic views of the high San Juans.

🏘️ Ophir

The small mountain community of Ophir lies northwest of Vermilion.

Ophir Pass crosses the mountains east of town.

The pass is especially significant topographically because it forms Vermilion Peak’s key col.

At approximately 11,792 feet, the pass is more than 2,100 vertical feet below Vermilion’s summit.

This saddle determines the mountain’s topographic prominence.

🚙 Ophir Pass

Ophir Pass is one of the famous high mountain roads of southwestern Colorado.

It connects the Ophir side of the mountains with the Highway 550 corridor near Silverton.

The road can involve:

Loose rock
Narrow shelf sections
Rough terrain
Snow
Steep drop-offs

It is not part of the normal hiking approach to Vermilion, but it plays a crucial geographical role because it separates Vermilion from higher terrain.

⛰️ Nearby Mountains

Gladstone Peak

Gladstone Peak reaches approximately 13,922 feet and is Vermilion’s Nearest Higher Neighbor and line parent.

It rises in the rugged San Miguel Mountains near the Wilson group.

Golden Horn

Golden Horn rises immediately northwest of Vermilion.

Its distinctive profile makes it one of the most recognizable summits in the Lake Hope and Ice Lake region.

It can be combined with Vermilion by experienced peakbaggers.

Fuller Peak

Fuller Peak lies close to Vermilion on the southeast ridge system.

Its summit is lower and much less prominent.

It is frequently climbed as part of the multi-peak Lake Hope circuit.

Beattie Peak

Beattie Peak is another nearby thirteener that can be incorporated into longer ridge traverses.

It lies southeast of Fuller Peak.

Pilot Knob

Pilot Knob is a striking rocky summit northwest of Vermilion.

Its volcanic rock is notoriously loose, making technical climbing significantly more serious than its elevation alone suggests.

Grizzly Peak

Grizzly Peak is another notable San Juan thirteener and provides a useful comparison with Vermilion’s high volcanic terrain.

Uncompahgre Peak

Uncompahgre Peak rises farther east and is the highest mountain in the San Juan Mountains.

It exceeds 14,300 feet and has a broad summit profile very different from Vermilion’s jagged western San Juan terrain.

Sunrise at Clear Lake near Silverton San Juan Mountains | Kris Wiktor

📊 Vermilion Peak vs. Gladstone Peak

Feature	Vermilion Peak	Gladstone Peak
Elevation	13,907 ft	~13,922 ft
Prominence	2,115 ft	~713 ft
Isolation	9.08 mi	~0.6 mi
NHN	Gladstone Peak	Mount Wilson
County High Point?	Yes — San Juan County	No
Topographic Character	Highly independent	Subsidiary high summit
Typical Summer Route	Class 2+	Much more difficult climbing

Gladstone is only about 15 feet higher.

Vermilion is nearly three times as prominent.

This is a perfect example of why elevation alone does not determine a mountain’s geographical importance.

📊 Vermilion vs. Colorado Fourteeners

Vermilion falls only slightly below the 14,000-foot threshold.

Mountain	Approx. Elevation
Uncompahgre Peak	14,318 ft
Mount Wilson	~14,252 ft
Wilson Peak	~14,023 ft
Vermilion Peak	13,907 ft

The difference between Vermilion and Colorado’s lowest recognized fourteeners is only around 100 feet.

From a mountaineering standpoint, that distinction means very little.

Weather, terrain, prominence, isolation and route difficulty are much more important than whether the summit happens to cross an even numerical threshold.

❓ Frequently Asked Questions

How high is Vermilion Peak?

Modern LiDAR measurements place Vermilion Peak at approximately 13,907.1 feet (4,238.9 meters).

Where is Vermilion Peak?

It is in the San Juan Mountains of southwestern Colorado, southeast of Telluride and northeast of Trout Lake.

What counties is Vermilion Peak in?

The summit lies on the boundary between San Juan and San Miguel counties.

Is Vermilion Peak a county high point?

Yes.

It is the highest point in San Juan County, Colorado.

What is Vermilion Peak’s Nearest Higher Neighbor?

Its NHN is Gladstone Peak.

How prominent is Vermilion Peak?

Approximately 2,115 feet (645 meters).

How isolated is Vermilion Peak?

Approximately 9.08 miles (14.61 kilometers).

What is Vermilion Peak’s key col?

Ophir Pass, at approximately 11,792 feet.

Is Vermilion Peak a fourteener?

No.

Its modern elevation is about 13,907 feet, roughly 93 feet below 14,000.

Is Vermilion Peak a Colorado Centennial?

Yes.

Current LiDAR rankings place it approximately #71 among Colorado’s Centennial Peaks.

Is Vermilion Peak volcanic?

Its rock is volcanic.

Vermilion is an eroded remnant of the ancient San Juan volcanic field rather than an intact active volcanic cone.

What type of rock forms Vermilion Peak?

Historical USGS descriptions identify San Juan Tuff cliffs capped by volcanic rock historically called Treasure Mountain quartz latite.

Who first climbed Vermilion Peak?

A reliable first-ascent record has not been identified.

The mountain was mapped and named by the early twentieth century and may have been climbed much earlier by miners, surveyors or local travelers.

How difficult is the normal route?

The common Southeast Ridge route is generally rated Class 2+ in dry summer conditions.

Where does the climb start?

A common approach uses the Lake Hope Trailhead near Trout Lake.

Can Vermilion be combined with other peaks?

Yes.

Peakbaggers commonly combine it with mountains such as:

Fuller Peak
Beattie Peak
Golden Horn
Unnamed 13,302

depending on fitness and conditions.

When is the best time to climb?

Generally July through September for relatively snow-free hiking.

What is the biggest summer hazard?

Afternoon thunderstorms and lightning are major concerns, along with loose volcanic rock.

Can non-climbers see Vermilion Peak?

Yes.

Excellent views can be found around:

Trout Lake
Hope Lake Trail
Lizard Head Pass corridor
Surrounding San Juan roads

⭐ Why Vermilion Peak Is Special

Vermilion Peak misses Colorado’s most famous mountain category by less than 100 feet.

If its summit were only slightly higher, it would be discussed alongside the state’s fourteeners.

Instead, it remains a thirteener—and in some ways that makes it more interesting.

The mountain has more than 2,100 feet of prominence, making it more topographically independent than many much higher Colorado summits.

It stands nine miles from the nearest higher terrain.

It is the highest point in San Juan County.

And its modern LiDAR elevation places it firmly among Colorado’s 100 highest ranked mountains.

Its geology adds another layer.

Vermilion is not a simple pile of sedimentary rock raised during the formation of the Rockies.

It is a surviving fragment of one of North America’s greatest ancient volcanic landscapes.

Massive eruptions spread ash and lava across southwestern Colorado tens of millions of years ago. Enormous magma chambers collapsed into calderas. Hydrothermal fluids altered the rocks and concentrated metals.

Then erosion took over.

Glaciers carved basins and valleys.

Freeze-thaw cycles shattered cliffs.

Rivers carried debris away.

What remains is the jagged red-orange summit rising above Trout Lake and Hope Lake today.

Below the mountain, spruce and fir forests give way to wildflower-filled meadows.

Above treeline, tundra supports pika, marmots, ptarmigan and other animals capable of surviving one of Colorado’s harshest environments.

For climbers, Vermilion offers another attraction.

The common Southeast Ridge is serious enough to feel like a true alpine objective without requiring the sustained technical climbing found on several nearby San Juan peaks.

And for peakbaggers, it offers opportunities to connect a remarkable chain of thirteeners above the Lake Hope basin.

Vermilion Peak is therefore far more than a mountain that narrowly missed fourteener status.

It is a 13,907-foot Centennial Peak, a 2,000-foot-prominence mountain, the high point of San Juan County, and a spectacular remnant of the volcanic forces that built the San Juan Mountains.

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