East End (Arizona)

East End (Arizona)

East End is the highest point in Arizona’s McDowell Mountains, rising above the Sonoran Desert northeast of Scottsdale and Phoenix. Modern lidar measurements place the summit at approximately 4,074 feet (1,242 meters), a few feet higher than the 4,067- to 4,069-foot elevations found on older maps and references.

The mountain occupies the rugged northern portion of the Scottsdale McDowell Sonoran Preserve, where enormous rounded granite boulders, steep desert slopes, narrow saddles, and surprisingly lush upland vegetation create a landscape markedly different from the lower desert around Phoenix.

With approximately 1,362 feet of topographic prominence and nearly 14 miles of isolation, East End is much more than a minor ridge high point. It is a significant independent summit and the undisputed high point of the McDowell Mountains.

East End is also the source area of the Marcus Landslide, one of Arizona’s largest known prehistoric landslides. Roughly half a million years ago, millions of cubic meters of weathered granite broke loose from the mountain and rushed toward the valley below.

Today, visitors can explore East End’s remarkable terrain using the official trail network of the McDowell Sonoran Preserve. Importantly, current City of Scottsdale rules require visitors to remain on designated trails, so historical descriptions of cross-country routes to East End’s exact summit should not be treated as current legal hiking directions.

⚡ Fast Facts

Feature	Details
Mountain	East End
Country	United States
State	Arizona
County	Maricopa County
City	Scottsdale
Mountain range	McDowell Mountains
Elevation	4,074 feet / 1,242 meters
Prominence	1,362 feet / 415 meters
Isolation	13.76 miles / 22.15 kilometers
Nearest Higher Neighbor (NHN)	Apache Peak
Coordinates	33.679725° N, 111.800347° W
USGS quadrangle	McDowell Peak
Range distinction	Highest point in the McDowell Mountains
Protected area	Scottsdale McDowell Sonoran Preserve
Major nearby trail	East End Trail
Principal access area	Tom’s Thumb Trailhead
Major geological feature	Marcus Landslide
Dominant summit rock	Granite

Peakbagger’s lidar-refined measurement gives East End an elevation of 4,074.1 feet, while ListsOfJohn retains an older figure of approximately 4,067 feet. The difference reflects improvements in elevation measurement rather than a physical change in the mountain.

🏔️ Highest Point in the McDowell Mountains

East End holds an important distinction: it is the highest summit in the McDowell Mountains.

This can be surprising because East End is less visually conspicuous from Scottsdale than several other summits in the range.

Thompson Peak is easily recognized by the communications structures on its summit, while nearby McDowell Peak forms a prominent part of the western skyline.

East End sits farther back along the northeastern portion of the range.

From many locations west of the McDowells, other ridges partially obscure it.

Modern measurements give East End approximately 4,074 feet of elevation, making it roughly 40 feet higher than McDowell Peak.

ListsOfJohn places McDowell Peak at approximately 4,034 feet.

The difference is small enough that older maps and casual observation can make the range’s true high point less obvious than expected.

📏 Nearest Higher Neighbor

According to Peakbagger, East End’s Nearest Higher Neighbor (NHN) is Apache Peak in northern Scottsdale.

Apache Peak reaches approximately 4,561 feet and lies well north of the McDowell Mountains.

Peakbagger calculates approximately 13.76 miles of true isolation for East End, meaning a traveler must move almost 14 miles from the summit before reaching higher terrain.

ListsOfJohn calculates a slightly larger isolation of approximately 14.81 miles because of differences in elevation data and isolation methodology.

Either measurement demonstrates that East End stands remarkably independently above the surrounding Sonoran Desert.

ListsOfJohn identifies Butte Peak as East End’s line parent and Continental Mountain as its proximate parent.

📐 More Than 1,300 Feet of Prominence

East End has approximately 1,362 feet of clean topographic prominence according to Peakbagger.

Its key saddle lies around 2,712 feet.

ListsOfJohn gives a very similar prominence of approximately 1,357 feet.

That comfortably places East End above the P1K threshold, a designation often used by peakbaggers for mountains with at least 1,000 feet of prominence.

The number helps explain why the McDowell Mountains appear so striking from the Phoenix metropolitan area.

Although the summit is only a little over 4,000 feet above sea level, it rises substantially above the surrounding desert and connects to higher terrain only across distant, much lower saddles.

🗺️ Where Is East End?

East End lies in Maricopa County in Scottsdale, Arizona, approximately 20 miles northeast of central Phoenix.

The mountain occupies the northeastern portion of the McDowell Mountains.

Nearby landmarks include:

• Tom’s Thumb
• McDowell Peak
• Thompson Peak
• Windgate Pass
• Bell Pass
• Marcus Landslide
• Fountain Hills
• Pinnacle Peak
• Troon Mountain

To the east, the land descends toward Fountain Hills and the Verde River country.

To the west and southwest lies Scottsdale and the enormous Phoenix metropolitan basin.

The result is an unusual combination of genuine mountain wilderness surrounded by one of America’s largest urban areas.

🌵 Scottsdale McDowell Sonoran Preserve

East End lies within the Scottsdale McDowell Sonoran Preserve, one of the largest permanently protected urban desert preserves in the world.

The preserve encompasses more than 30,500 acres and contains over 230 miles of multi-use trails.

Its modern creation represents decades of conservation work by Scottsdale residents, conservation organizations, and city government.

The first preserve lands were formally dedicated in 1994.

Subsequent public votes funded major additional land purchases, eventually protecting large portions of the McDowell Mountains and surrounding Sonoran Desert from development.

East End’s slopes, granite formations, wildlife habitat, and trail corridors now form part of that permanently protected landscape.

🥾 Can You Hike to the Summit of East End?

This point requires an important distinction.

Older hiking reports describe leaving the Tom’s Thumb Trail and following an unofficial route through granite boulders to East End’s exact high point.

That should not be used as current hiking guidance.

The City of Scottsdale currently requires McDowell Sonoran Preserve visitors to remain on designated trails. Areas away from designated and posted trails are considered off-limits for ordinary recreational use.

The exact 4,074-foot high point is not the endpoint of the official East End Trail.

Visitors can still experience East End extensively through the preserve’s designated trail system—including some exceptionally challenging hiking—but should not leave those trails simply to claim the precise summit.

This makes East End somewhat unusual among Mountain Field Guide profiles: it is an important range high point whose surrounding mountain can be explored extensively without treating the exact summit as an unrestricted peakbagging objective.

🥾 East End Trail

The appropriately named East End Trail crosses some of the wildest terrain in the McDowell Sonoran Preserve.

The trail is approximately 1.25 to 1.3 miles long and gains or loses roughly 1,000 feet, depending on direction.

That makes it one of the steepest established trails in the preserve.

The route links the higher Tom’s Thumb Trail area with trails approaching from the southeast.

Hikers encounter:

• Steep grades
• Loose footing
• Massive granite boulders
• Rugged desert terrain
• Sweeping eastern views
• Higher-elevation vegetation
• Considerably more solitude than on many popular Scottsdale trails

Historic McDowell Sonoran Conservancy material described East End Trail as perhaps the most challenging trail in the preserve.

Although short, it should not be underestimated.

🥾 Tom’s Thumb–East End Loop

For experienced hikers wanting a substantial East End adventure while staying on designated trails, the Tom’s Thumb–East End Loop is one of the strongest options.

The McDowell Sonoran Conservancy describes the complete loop as approximately:

11.1 miles round trip

with roughly:

2,500 feet of elevation gain

The route uses portions of the:

• Tom’s Thumb Trail
• Windgate Pass Trail
• Windmill Trail
• East End Trail

The Conservancy rates the loop extremely challenging.

Hikers face several major climbs along with steep and loose trail sections.

The reward is an unusually complete journey through the northern McDowells, combining granite boulder fields, desert canyons, mountain saddles, higher-elevation vegetation, and expansive views.

👍 Tom’s Thumb Trailhead

The most convenient starting point for exploring the northern East End area is generally the Tom’s Thumb Trailhead.

The modern trailhead provides organized access to several of the most important trails in the northern McDowell Sonoran Preserve.

One important detail should be remembered:

There is no drinking water at the Tom’s Thumb Trailhead.

Visitors need to arrive with enough water for the entire outing.

That is especially important for the East End area because steep trails, strong sunlight, low humidity, and long routes can produce substantial fluid loss even during relatively cool weather.

🪨 A Mountain of Granite

The northern McDowell Mountains around East End are dominated by spectacular exposures of granite.

These pale, coarse-grained rocks create the enormous rounded boulders for which the Tom’s Thumb and East End landscapes are famous.

Geological dating indicates that granite in the northern McDowells formed roughly 1.4 billion years ago.

One dated sample of northern McDowell granite yielded an age of approximately 1.422 billion years.

The modern mountain is vastly younger.

For hundreds of millions of years, the granite remained buried while geological processes repeatedly altered the landscape above it.

Much later tectonic uplift and faulting exposed the resistant rock at the surface.

Weathering then transformed the granite into the boulder-covered slopes visible today.

🪨 How Granite Becomes Giant Rounded Boulders

Granite contains natural fractures known as joints.

Water penetrates those fractures and slowly attacks minerals within the rock.

Feldspar can chemically weather into clay, while other minerals loosen and break apart.

Over time, once-angular blocks become progressively rounded.

Granite also decomposes into loose sand- and gravel-sized particles called grus.

The combination of rounded boulders, slippery grus, clay, steep slopes, and fractured bedrock played an important role in creating East End’s most extraordinary geological event.

🌊 The Marcus Landslide

Approximately 500,000 years ago, part of the eastern side of the McDowell Mountains near East End suddenly collapsed.

The resulting event is known as the Marcus Landslide.

It was not a small rockfall.

The Arizona Geological Survey estimates that the landslide mobilized roughly 5.5 million cubic meters of material, consisting largely of granite boulders, weathered granite, and grus.

The moving mass weighed an estimated 11.7 billion kilograms, or about 25.8 billion pounds.

The slide rushed downslope toward the valley east of East End, leaving behind one of Arizona’s most remarkable prehistoric mass-movement deposits.

💥 A Mountain Collapses

The Marcus Landslide demonstrates what can happen when several geological weaknesses combine.

East End’s granite was heavily fractured.

Near-surface weathering had broken some of it into boulders and loose grus.

Clay created through chemical weathering could become slippery when wet.

Meanwhile, the eastern face of the mountain had been exposed at a steep angle.

Eventually the unstable mass broke loose.

Research summarized by the McDowell Sonoran Conservancy estimates that debris traveled roughly 1.5 kilometers, dropping approximately 400 meters toward the lower terrain.

The landslide may have moved at speeds of roughly 16 to 44 miles per hour.

🪨 The Marcus Landslide Today

Evidence of the catastrophe remains remarkably visible.

A large concave scar beneath the East End ridgeline marks the source area.

Downslope, ridges of debris identify portions of the landslide’s margins and toe.

Enormous transported boulders remain scattered across the landscape.

Some individual blocks weigh hundreds of thousands of pounds.

The deposit is especially impressive because Arizona’s dry climate has helped preserve landforms that would erode more rapidly in wetter environments.

Visitors do not need to climb East End to see the feature.

The designated Marcus Landslide Trail provides a much easier way to explore its geology.

🥾 Marcus Landslide Trail

The Marcus Landslide Trail begins from the northern preserve trail network near the Tom’s Thumb area.

Interpretive signs explain how the landslide formed and help visitors identify major features in the landscape.

The hike passes:

• Granite boulder fields
• Unusual mushroom-shaped rocks
• Desert vegetation
• Views of the East End scar
• Portions of the landslide deposit
• Broad views toward Four Peaks and the Verde Valley

For visitors primarily interested in East End’s geology rather than a strenuous mountain workout, this is arguably the best hike in the area.

🍄 Mushroom-Shaped Granite Boulders

One of the most memorable sights around East End is the collection of oddly shaped granite boulders sometimes described as mushrooms.

These rocks have wide upper sections supported by narrower bases.

Their unusual form developed through weathering.

Moisture remained in soil around the lower parts of buried granite blocks, causing the bases to weather more rapidly than the portions above them.

Later erosion removed the surrounding soil and exposed the previously buried rocks.

What remains are naturally sculpted granite shapes that sometimes look almost artificially balanced.

They are particularly noticeable around the Marcus Landslide and northern preserve trails.

🌵 A Different Side of the Sonoran Desert

The upper East End landscape feels noticeably different from the desert around lower Scottsdale.

Elevation plays an important role.

The northern McDowells receive somewhat greater rainfall and experience cooler temperatures than surrounding lower desert.

The McDowell Sonoran Conservancy notes that this difference produces unusual wildflowers and plant communities along the East End trails.

Classic Sonoran Desert plants remain abundant, including saguaros, paloverdes, agaves, ocotillos, prickly pear, and cholla.

At higher elevations and in sheltered washes, however, hikers may also encounter scrub oak and other plants more strongly associated with Arizona’s uplands.

🐦 Wildlife Around East End

East End’s rugged terrain creates valuable wildlife habitat despite its proximity to metropolitan Phoenix.

The higher and more isolated portions of the preserve support birds that may be less conspicuous on heavily traveled lower trails.

The McDowell Sonoran Conservancy specifically notes the possibility of seeing:

• Canyon wrens
• White-throated swifts
• Peregrine falcons

Other animals found within the McDowell Sonoran Preserve include mule deer, javelina, coyotes, bobcats, desert cottontails, jackrabbits, reptiles, and numerous smaller mammals.

Rattlesnakes are an important part of the preserve ecosystem and may be encountered during warmer weather.

Visitors should give all wildlife substantial space.

🌄 Views from the East End Area

The upper trail system around East End offers remarkable views in almost every direction.

East

Fountain Hills and the Verde River country spread across the lower landscape.

On clear days, the Superstition Mountains and distinctive Weaver’s Needle can be visible in the distance.

West

Scottsdale and the greater Phoenix metropolitan area stretch across the desert basin.

Southwest

Thompson Peak and McDowell Peak dominate much of the closer skyline.

Northwest

Tom’s Thumb rises from an extraordinary landscape of rounded granite formations.

Beyond it lie Pinnacle Peak and the mountains north of Scottsdale.

Northeast

The landscape becomes increasingly wild toward the Verde River, Four Peaks, and Arizona’s central mountain country.

👍 Tom’s Thumb

Tom’s Thumb is perhaps the best-known rock formation in the McDowell Mountains.

The giant granite pinnacle rises dramatically from the northern ridgeline near East End.

Despite its fame, Tom’s Thumb is not the summit of East End.

Nor is it the highest point in the McDowell Mountains.

It is a prominent granite formation along the broader mountain ridge.

The Tom’s Thumb Trail provides one of the principal approaches into East End’s high country and is among the most popular hiking routes in the Scottsdale preserve.

Because the trail gains elevation rapidly, it offers excellent perspectives of East End even without attempting the longer loop.

🏔️ East End vs. McDowell Peak

McDowell Peak comes remarkably close to matching East End’s elevation.

ListsOfJohn gives McDowell Peak approximately 4,034 feet, compared with about 4,067 feet under the same data system for East End.

Modern lidar puts East End somewhat higher at roughly 4,074 feet.

McDowell Peak nevertheless has its own substantial prominence—approximately 1,000 feet under current ListsOfJohn measurements.

The two mountains form the highest major summits of the McDowell range.

From Scottsdale’s western side, McDowell Peak may actually appear more obvious because it occupies a more exposed position along the western skyline.

📡 Thompson Peak

Thompson Peak is another major summit of the McDowell Mountains.

It reaches approximately 3,984 feet and is therefore about 90 feet lower than East End.

Communications facilities on Thompson Peak make it exceptionally easy to identify.

From much of Scottsdale, the tower-topped summit is considerably more recognizable than East End.

Thompson Peak’s Nearest Higher Neighbor is McDowell Peak, creating a close topographic relationship among the three principal high summits of the range.

🏔️ Pinnacle Peak

Pinnacle Peak lies west of the northern McDowell Mountains.

At approximately 3,169 feet, it is much lower than East End but is one of Scottsdale’s most recognizable natural landmarks.

A developed trail circles beneath Pinnacle Peak’s technical summit, providing a substantially easier outing than the upper East End trail system.

The contrast between the two is striking.

Pinnacle Peak is surrounded by developed northern Scottsdale, while East End lies within the protected heart of a large desert preserve.

🏔️ Troon Mountain

Troon Mountain rises west of the McDowell Mountains near northern Scottsdale.

It reaches approximately 3,519 feet.

Interestingly, Peakbagger identifies East End as Troon Mountain’s Nearest Higher Neighbor.

This creates another direct topographic relationship between the two Scottsdale summits.

Troon Mountain is surrounded by considerably more development, while East End’s landscape has been preserved largely in its natural state.

🏔️ Apache Peak

East End’s own NHN, Apache Peak, lies much farther north in the increasingly rugged highlands beyond the McDowells.

Apache Peak reaches approximately 4,561 feet.

Although less than 500 feet higher in absolute elevation, it is almost 14 miles away from East End’s summit.

That long distance to higher terrain is what gives East End its impressive isolation.

Apache Peak is part of another mountain cluster that includes Gold Hill and Butte Peak.

☀️ Best Time to Hike East End

East End is fundamentally a cool-season desert hiking destination.

🍂 Autumn

October and November offer increasingly comfortable temperatures as Phoenix’s long summer finally subsides.

❄️ Winter

December through February may provide the best overall hiking conditions.

Cool days make steep climbs more manageable, while clear winter air can produce excellent long-distance views.

The upper mountains can be surprisingly cold during winter storms.

🌼 Spring

Spring combines comfortable temperatures with the possibility of spectacular wildflowers.

Following wet winters, desert vegetation may turn green and flowers can cover portions of the surrounding hillsides.

☀️ Summer

Summer hiking around East End can be extremely dangerous.

Scottsdale specifically warns visitors about severe desert heat and recommends avoiding strenuous activity during the hottest portions of the day.

Temperatures above 100°F are routine during the warmer months.

The combination of steep trails, exposed slopes, dry air, and intense sunlight can quickly produce heat exhaustion or heat stroke.

⛈️ Monsoon Season

Arizona’s summer monsoon introduces a second major warm-season hazard.

Thunderstorms can develop rapidly over the McDowell Mountains.

Potential hazards include:

• Lightning
• Strong winds
• Heavy rain
• Flash flooding
• Slippery granite
• Sudden temperature changes

Exposed high terrain should be avoided whenever thunderstorms are developing.

Wash crossings can also become dangerous even when the heaviest rainfall occurs some distance away.

⚠️ Hiking East End Safely

The City of Scottsdale recommends several precautions for visitors exploring the preserve.

Bring:

• Ample water
• Food and salty snacks
• Sun protection
• Sturdy footwear
• A trail map or navigation tool
• A charged phone
• First-aid supplies
• A flashlight or headlamp
• Appropriate layers

Tell someone your intended route before leaving.

Most importantly, remain on designated trails.

This protects fragile desert soils and vegetation while also keeping visitors away from dangerous cliffs, unstable boulder fields, sensitive habitat, and archaeological resources.

🧭 Why East End Is Special

East End combines several qualities that rarely occur together.

It is the highest point of an entire mountain range.

It possesses more than 1,300 feet of prominence.

It rises immediately beside a metropolitan area of millions of people yet remains embedded within tens of thousands of acres of protected desert.

Its granite records geological events more than a billion years old.

Its eastern flank preserves the scar of one of Arizona’s largest prehistoric landslides.

And its official trail network allows visitors to experience steep mountain terrain, giant boulder fields, wildlife habitat, desert ecology, and exceptional views without leaving Scottsdale.

East End is therefore much more than simply the highest number on a McDowell Mountains elevation map.

It is one of the best places to understand how geology, desert ecology, mountain topography, conservation, and urban growth intersect in central Arizona.

❓ Frequently Asked Questions

How high is East End in Arizona?

Modern Peakbagger lidar data places East End at approximately 4,074 feet (1,242 meters).

Why do older sources say 4,067 or 4,069 feet?

Those figures come from older mapping and elevation data. Modern lidar provides a more detailed measurement of the summit surface.

Is East End the highest mountain in the McDowell Mountains?

Yes. East End is the highest point in the McDowell Mountains.

Is East End higher than McDowell Peak?

Yes. Modern data places East End at approximately 4,074 feet, while ListsOfJohn places McDowell Peak at approximately 4,034 feet.

Is East End higher than Thompson Peak?

Yes. Thompson Peak reaches approximately 3,984 feet, making East End roughly 90 feet higher.

What is East End’s prominence?

Peakbagger calculates approximately 1,362 feet (415 meters) of clean topographic prominence.

What is East End’s isolation?

Peakbagger gives East End approximately 13.76 miles (22.15 kilometers) of topographic isolation.

What is East End’s Nearest Higher Neighbor?

The Nearest Higher Neighbor (NHN) is Apache Peak in northern Scottsdale.

Can you hike to the exact summit?

Historical peakbagging reports describe unofficial summit routes, but current City of Scottsdale rules require visitors to remain on designated trails within the McDowell Sonoran Preserve. The exact summit is not the endpoint of the official East End Trail, so visitors should use the designated trail network rather than following old cross-country summit descriptions.

How long is East End Trail?

The official East End Trail is approximately 1.25 to 1.3 miles long and changes elevation by roughly 1,000 feet.

What is the Tom’s Thumb–East End Loop?

It is a demanding designated-trail loop through the northern McDowell Mountains. The McDowell Sonoran Conservancy lists it at approximately 11.1 miles with 2,500 feet of elevation gain.

What is the Marcus Landslide?

The Marcus Landslide is an enormous prehistoric rock avalanche originating near East End approximately 500,000 years ago. Millions of cubic meters of weathered granite moved down the eastern side of the mountain.

What kind of rock forms East End?

East End is dominated by ancient granite, much of it roughly 1.4 billion years old.

Is Tom’s Thumb the summit of East End?

No. Tom’s Thumb is a prominent granite rock formation near East End but is not the range high point.

What is the best time to hike around East End?

Late fall through spring generally provides the safest and most comfortable hiking weather. Summer heat can be extreme.

🔗 Related Articles

• Apache Peak
• Butte Peak
• Thompson Peak (Arizona)
• Pinnacle Peak (Arizona)
• Troon Mountain
• Mount McDowell

📚 Sources

• Peakbagger — East End, Arizona
• ListsOfJohn — East End
• City of Scottsdale — McDowell Sonoran Preserve
• City of Scottsdale — McDowell Sonoran Preserve South Area Trail Map
• McDowell Sonoran Conservancy — Hikes and Trails
• Arizona Geological Survey — Marcus Landslide, McDowell Mountains
• Arizona Geological Survey — Geologic Map of the McDowell Mountains
• U.S. Geological Survey National Geologic Map Database — Geology, McDowell Mountains Area
• McDowell Sonoran Conservancy — The Marcus Landslide
• McDowell Sonoran Conservancy — Vegetation and Flora of the McDowell Sonoran Preserve