Olds Mountain
Olds Mountain rises above Juneau, Alaska, in the rugged Boundary Ranges of the Coast Mountains. Although modest in elevation compared with Alaska’s great glaciated giants, the mountain packs an impressive combination of steep alpine terrain, sweeping views, glacially sculpted geology, and surprisingly wild backcountry within only a few miles of the state capital.
The mountain stands roughly five miles northeast of downtown Juneau and forms part of the high country surrounding Granite Creek Basin. Hikers who reach its upper slopes leave the dense coastal rainforest behind and enter an open alpine world of rock, tundra, lingering snowfields, and views toward the Juneau Icefield.
⚡ Fast Facts
| Fact | Details |
|---|---|
| Country | United States |
| State | Alaska |
| Region | City and Borough of Juneau |
| Mountain Range | Boundary Ranges, Coast Mountains |
| Elevation | Approximately 4,453 feet / 1,357 meters |
| Prominence | Approximately 200–260 feet / 61–79 meters, depending on dataset |
| Isolation | About 0.4 mile / 0.6 kilometer |
| Nearest Higher Neighbor (NHN) | True Summit |
| Coordinates | Approximately 58.3353° N, 134.2989° W |
| USGS Topographic Map | Juneau B-1 |
| Nearest City | Juneau |
| Primary Approach | Perseverance Trail and Granite Creek Basin |
| Named For | John Olds, Juneau pioneer, miner, and hotel operator |
Olds Mountain has an unusual mapping situation. The named mountain contains several nearby high points, including True Summit and West Summit, so elevation figures differ among maps and peak databases. Historical USGS work in the Olds Mountain–Clark Peak area gives the highest mountain elevation as 4,453 feet, while modern databases may show slightly different figures.
Importantly, the often-repeated figures of 4,472 feet of elevation and 1,060 feet of prominence appear to belong to a separate database entry called Olds Mountain Northeast, rather than the principal Olds Mountain summit.
🗺️ Geography and Setting
Olds Mountain is part of the Boundary Ranges, the southeastern portion of the vast Coast Mountains that extend through southeastern Alaska and western Canada.
The summit stands northeast of Juneau, between the heavily glaciated interior mountains and the deep fjords and channels of Alaska’s southeastern coast.
Nearby mountains include Sheep Mountain, Clark Peak, Observation Peak, Mount Juneau, and Roberts Peak.
Granite Creek drains part of the mountain’s western and southwestern terrain before joining Gold Creek, which ultimately flows through Juneau toward Gastineau Channel.
One of Olds Mountain’s most appealing features is the abrupt transition between ecosystems.
A hike from Juneau begins close to sea level in lush temperate rainforest. Within a relatively short horizontal distance, the landscape climbs into open subalpine and alpine terrain where trees disappear, snow can linger into summer, and the horizon opens toward the Juneau Icefield.
⛰️ True Summit — Olds Mountain’s Nearest Higher Neighbor
The Nearest Higher Neighbor of Olds Mountain is True Summit, a neighboring high point on the same mountain complex.
True Summit lies about 0.4 mile northeast of the traditionally mapped Olds Mountain summit.
Historical geographic records describe True Summit as being on Olds Mountain, approximately 2.7 miles north of Clark Peak and five miles northeast of Juneau. The descriptive name was reported to the U.S. Geological Survey in 1965.
This is one reason Olds Mountain’s elevation and prominence can be confusing. Older maps, modern digital elevation models, hiking references, and peak databases do not always assign the same summit point to the name.
There is also a West Summit, historically described as lying about 0.4 mile southwest of True Summit.
For Mountain Field Guide purposes, it is best to treat these as closely connected summits within the broader Olds Mountain massif rather than combining their statistics with the more distant Olds Mountain Northeast peak.
📜 How Olds Mountain Got Its Name
Olds Mountain was named for John Olds, an early miner, businessman, and pioneer associated with Juneau.
Olds was born in 1850 and traveled to Alaska from England in 1877. He prospected and mined around Wrangell and Sitka before arriving in the Juneau area in 1880 as part of an early group of miners moving north from Sitka.
He later became an important figure in early Juneau.
The name Olds Mountain appeared in a U.S. Geological Survey publication by W. J. Peters in 1902, making it one of the long-established geographic names in the mountains immediately surrounding Juneau.
John Olds died in 1910, but his name remains attached to one of the most recognizable alpine areas northeast of the city.
🪨 Geology of Olds Mountain
Olds Mountain has been studied in unusual geological detail for a relatively small Alaskan summit.
In 1953, geologist C. L. Sainsbury published a U.S. Geological Survey report devoted specifically to the Olds Mountain–Clark Peak area.
The study documented a landscape dominated by deeply glaciated valleys, scoured bedrock, metamorphic rocks, and intrusive rocks associated with the Coast Range batholith.
Much of the area consists of crystalline schist.
These rocks experienced intense heat and pressure deep within Earth’s crust. Minerals identified in the metamorphic rocks include biotite, garnet, kyanite, and sillimanite—minerals that reveal the unusually high degree of metamorphism experienced by parts of the region.
Later intrusions connected with the Coast Range batholith added additional igneous rocks to the geological story.
Together, these processes produced an exceptionally resistant mountain landscape.
🧊 A Landscape Sculpted by Glaciers
Glaciation has had an equally important influence on Olds Mountain.
USGS geologists described deep glacial valleys and extensively scoured bedrock throughout the region. They also found glacial erratics at elevations above 3,100 feet, evidence that ice once covered considerably more of the landscape than it does today.
Remnant snowfields and small bodies of persistent ice remain in the higher terrain.
The nearby Juneau Icefield provides an even more dramatic reminder of the forces that shaped these mountains. From high points on Olds Mountain, hikers can look east and northeast toward an immense landscape of snow, ice, sharp ridges, and glacier-carved valleys.
The result is classic Southeast Alaska scenery: dark bedrock, green alpine slopes, lingering snow, and massive glacial terrain stretching toward the Canadian border.
🌲 Flora and Fauna
The journey up Olds Mountain passes through several distinct ecological zones.
At lower elevations around Juneau, the maritime climate supports the coastal temperate rainforest characteristic of Southeast Alaska. Western hemlock and Sitka spruce dominate many of these forests, accompanied by Alaska yellow cedar, mountain hemlock, shrubs, mosses, ferns, and an exceptionally lush understory.
Higher on the mountain, trees become progressively shorter and more scattered.
Subalpine vegetation may include mountain hemlock, alder, blueberry, salmonberry, dwarf shrubs, grasses, sedges, and extensive patches of heather.
Above treeline, exposed ridges support hardy alpine plants capable of surviving cold temperatures, strong winds, deep winter snow, and an extremely short growing season.
Wildflowers can be particularly attractive during the brief Southeast Alaska summer.
The surrounding mountains also provide habitat for a wide range of animals.
Hikers may encounter or see evidence of:
- Mountain goats
- Sitka black-tailed deer
- Black bears
- Hoary marmots
- Porcupines
- Grouse
- Ptarmigan
- Ravens
- Bald eagles and other raptors
Mountain goats are especially well adapted to the steep cliffs and alpine terrain of Southeast Alaska, while marmots are frequently encountered around rocky basins and high-elevation meadows.
🥾 Hiking Olds Mountain
Olds Mountain can be climbed without technical mountaineering equipment under favorable summer conditions, but it should not be mistaken for a short or easy trail hike.
Most routes begin with the Perseverance Trail, one of Juneau’s best-known hiking trails.
From Basin Road, hikers follow the Perseverance Trail into the Gold Creek drainage. Farther up the valley, the Granite Creek Trail branches north and climbs toward Granite Creek Basin.
Beyond the maintained trail, the route becomes progressively more rugged.
From Granite Creek Basin, hikers climb toward the Juneau Ridge and eventually reach the base of Olds Mountain. The summit ascent follows steep alpine slopes and ridge terrain rather than a conventional maintained trail.
🥾 The Granite Creek Route
The Granite Creek approach is one of the most logical ways to reach Olds Mountain.
The route begins along Perseverance Trail before turning toward Granite Creek roughly several miles from the trailhead.
Granite Creek Trail then climbs into a broad alpine basin surrounded by steep mountains.
Once above the developed trail, hikers continue toward the ridge system at the head of the basin.
From there, Olds Mountain rises prominently above the surrounding terrain.
This approach also provides access to portions of the Juneau Ridge, making it possible for strong hikers to combine Olds Mountain with a much larger backcountry circuit.
The transition from forest to alpine basin is one of the highlights of the outing.
🏔️ The Juneau Ridge Route
Another approach reaches Olds Mountain by first climbing Mount Juneau.
From Perseverance Trail, hikers take the steep Mount Juneau Trail to the summit and then follow the long alpine ridge eastward.
The ridge eventually approaches Olds Mountain from the west.
Strong hikers sometimes combine the Mount Juneau and Granite Creek approaches into a loop, descending through Granite Creek Basin rather than retracing the entire ridge.
A commonly described Juneau Ridge circuit is approximately 13 miles and can require a full day even without adding every possible summit along the way.
Olds Mountain itself can add additional elevation, time, and route-finding difficulty.
🌄 Views From the Summit
On a clear day, Olds Mountain offers exceptional views.
To the west and southwest lies Juneau, Douglas Island, and Gastineau Channel.
Closer at hand are the ridges surrounding Mount Juneau, Roberts Peak, Sheep Mountain, and Granite Creek Basin.
To the east, the terrain changes dramatically.
The mountains become increasingly glaciated as they approach the Juneau Icefield.
Hikers have reported views toward the Taku Glacier, Split Thumb, Nugget-area peaks, the Fairweather Range in the distance, and even peaks toward the Canadian border under particularly clear conditions.
Few mountains of this elevation provide such a dramatic contrast between a coastal city, temperate rainforest, alpine tundra, and major glacial terrain.
🌦️ Weather and Best Time to Climb
Southeast Alaska has a maritime climate characterized by mild temperatures compared with interior Alaska but abundant precipitation.
Cloud, rain, wind, and rapidly changing visibility are routine components of mountain travel around Juneau.
The normal hiking window for Olds Mountain is roughly mid-June through mid-September, although conditions vary dramatically from year to year.
Early summer often brings lingering snow.
Later summer usually provides more snow-free terrain but can also bring increasing rainfall and persistent cloud cover.
Even during midsummer, hikers should carry waterproof clothing and insulation.
A sunny morning in downtown Juneau does not guarantee good conditions several thousand feet higher on the ridge.
⚠️ Avalanche and Snow Hazards
Olds Mountain’s slopes are steep enough for avalanche danger to persist well into spring.
Snowbanks may also remain on exposed traverses and steep sections into early summer.
Depending on the year and the chosen route, an ice axe, traction devices, or crampons may be appropriate before the mountain becomes largely snow-free.
Attempting to cross steep, hard snow without the ability to stop a fall can turn otherwise moderate hiking terrain into a serious hazard.
Later in summer, loose rock, wet vegetation, cliff bands, and route-finding become more significant concerns.
🧭 Route-Finding and Backcountry Safety
Much of the summit approach is not a maintained trail.
Hikers should be comfortable reading terrain, using a topographic map or offline GPS, and recognizing when a route has become too exposed.
The Granite Creek Basin and Juneau Ridge area contains steep slopes separated by cliff bands and gullies. A route that looks straightforward from above can become much more difficult once a hiker reaches it.
Fog can make navigation particularly challenging.
Because Juneau’s mountains rise directly from a wet maritime environment, low clouds can form rapidly and eliminate views that were clear only minutes earlier.
Carry enough food, water, insulating clothing, rain protection, navigation equipment, and emergency gear for a much longer day than expected.
🏙️ A Wild Mountain Close to Juneau
One of the most remarkable things about Olds Mountain is its proximity to Alaska’s capital.
The mountain sits only a few miles from downtown Juneau, yet its upper slopes feel distinctly remote.
Within a single outing, hikers can move from city streets into temperate rainforest, follow historic mining-era trails, climb into an alpine basin, cross an exposed mountain ridge, and look out over one of North America’s great icefields.
That accessibility does not make Olds Mountain easy.
Rather, it makes the mountain an unusually convenient gateway into serious Southeast Alaska alpine terrain.
🌄 Why Olds Mountain Is Worth Exploring
Olds Mountain may never receive the attention given to Alaska’s much taller peaks, but elevation tells only a small part of its story.
Its setting is extraordinary.
The mountain stands at the boundary between Juneau’s lush coastal forests and the increasingly glaciated interior of the Boundary Ranges. Its slopes preserve evidence of enormous ancient glaciers, while its bedrock records intense metamorphism and the formation of the Coast Mountains.
For hikers, Olds Mountain offers a demanding full-day adventure with exceptional views.
For geologists, it provides a particularly well-studied example of Southeast Alaska’s complex mountain-building history.
And for anyone interested in the mountains surrounding Juneau, it forms an important link between Sheep Mountain, Roberts Peak, Mount Juneau, and the vast Coast Mountains beyond.
🔗 Related Articles
📚 Sources
- U.S. Geological Survey — Geology of the Olds Mountain–Clark Peak Area, Juneau and Vicinity, Alaska
- U.S. Geological Survey Publications Warehouse — Geology of the Olds Mountain–Clark Peak Area
- Alaska Division of Geological & Geophysical Surveys — Olds Mountain–Clark Peak Geology
- SummitPost — Olds Mountain
- SummitPost — Granite Creek Route
- SummitPost — Juneau Ridge Route
- Peakbagger — Juneau-Area Peak Records
- Alaska Department of Fish and Game — Mountain Goat Research and Management
