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United States
Colorado
Lake County

Mount Massive East Slopes Trail

Hard

4.7

(6747)

14,286

hikers

Mount Massive East Slopes Trail

10:14

21.3km

1,340m

Hiking

Hike Colorado's second-highest peak, Mount Massive, on this challenging 13.3-mile trail with 4401 feet of gain and panoramic alpine views.

Last updated: February 26, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 4.81 km for 11.7 km

Waypoints

A

Start point

Parking

Get Directions

1

1.25 km

View of Elbert from the Colorado Trail

Highlight • Viewpoint

There is a hard switchback in the middle of the trail, and a small clearing offers a view of Mount Elbert's summit off in the distance. The CT pushes uphill …

Tip by

2

6.06 km

Alpine meadows on Mount Massive

Highlight (Segment) • Natural

Once you branch off of the Colorado Trail, the route to Massive becomes steeper. After breaking through the forest at treeline, the trail becomes less steep as is starts to …

Tip by

3

10.6 km

Mount Massive

Highlight • Summit

At 14,428 feet, Mount Massive is the second highest peak in Colorado. It is a popular summit due to having multiple routes and mainly only requiring class 1 and class …

Tip by

B

21.3 km

End point

Parking

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Way Types & Surfaces

Way Types

11.7 km

9.45 km

117 m

< 100 m

Surfaces

21.2 km

160 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (4,370 m)

Lowest point (3,070 m)

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Weather

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Wednesday 8 July

23°C

8°C

63 %

Additional weather tips

Max wind speed: 7.0 km/h

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Frequently Asked Questions

What is the best time of year to hike this trail?

The prime hiking season for the Mount Massive East Slopes Trail is typically from late June through September. During this period, the snow has usually melted from the higher elevations, and the weather is generally more stable. It's always wise to start early in the day, especially during summer, to avoid afternoon thunderstorms which are common in the Colorado high country.

Is the Mount Massive East Slopes Trail dog-friendly?

Yes, the trail is generally considered dog-friendly. However, it's important to remember that you'll be hiking within the Mount Massive Wilderness, so dogs should be leashed. The final push to the summit involves a Class 2 scramble over rocky terrain, which can be challenging for some dogs' paws. Be prepared to assist your dog or consider their capabilities for this section.

Are there any permits or fees required to hike here?

No, there are no specific permits or entrance fees required to hike the Mount Massive East Slopes Trail. However, as it's located within the Mount Massive Wilderness, standard wilderness regulations apply. These include rules regarding party size, dispersed camping, and campfires to preserve the natural environment.

What is the terrain like on the Mount Massive East Slopes Trail?

The trail begins with a gentle ascent through dense forest, following a section of the Colorado Trail, and includes several creek crossings. After about 3 miles, the grade steepens considerably as you climb through the woods towards the treeline, which is around 11,800 to 12,000 feet. Above treeline, the path transitions to willows and rolling tundra, becoming rockier as you approach the 13,900-foot saddle. The final stretch to the 14,427-foot summit is a Class 2 scramble, requiring some boulder hopping.

What can I see along the route?

Hikers are treated to diverse and stunning scenery. The initial forested sections offer glimpses of the surrounding nature. Once above treeline, you'll experience breathtaking alpine vistas, including panoramic views of Twin Lakes, the Arkansas Valley, the town of Leadville, and Turquoise Lake. On clear days, you might even spot distant peaks like the Elk Mountains. Notable highlights include a View of Elbert from the Colorado Trail, beautiful Alpine meadows on Mount Massive, and of course, the Mount Massive summit itself.

How long does it typically take to complete the hike?

This is a long and demanding day hike. While individual times vary based on fitness and pace, the average duration for completing the Mount Massive East Slopes Trail is around 10 to 12 hours. It's crucial to start very early in the morning to allow ample time for the ascent and descent, and to be off the exposed sections before potential afternoon storms.

Where does the trail start, and what are the parking options?

The Mount Massive East Slopes Trail, also known as the standard route, typically starts from the Mount Massive Trailhead. This trailhead is usually accessed via Halfmoon Creek Road. Parking is available at the trailhead, but it can fill up very early, especially on weekends during peak season. Arriving before sunrise is often recommended to secure a spot.

Does this trail intersect with other well-known paths?

Yes, a significant portion of the Mount Massive East Slopes Trail follows sections of the renowned Colorado Trail. Specifically, you'll be on parts of the Colorado Trail, Colorado Trail Seg. 10 Hagerman Pass Road to Halfmoon Creek, and the Continental Divide Trail and Colorado Trail (Segment 10) for the initial miles before branching off towards the summit.

What makes Mount Massive unique among Colorado's 14ers?

Mount Massive holds the distinction of being Colorado's second-highest peak, standing at 14,427 feet. It's aptly named because it boasts more area above 14,000 feet than any other peak in the contiguous United States, featuring seven distinct summits exceeding this elevation. The East Slopes route is considered the 'standard' way to experience this impressive mountain.

Is there any water available on the trail?

The initial forested sections of the trail feature several creek crossings where water may be available. However, once you ascend above treeline, reliable water sources become scarce. It is essential to carry sufficient water for the entire hike, as filtering water from alpine streams is not always guaranteed, and conditions can vary.

Nearby routes

Hard

23

Colorado Trail: Segment 8

11:48h

39.9km

1,080m

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