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Hiking trails & Routes
United States
Alaska
Anchorage

Flattop Sunnyside Trail

Moderate

4.7

(4102)

19,297

hikers

Flattop Sunnyside Trail

01:21

2.64km

510m

Hiking

The Flattop Sunnyside Trail offers a moderate hiking experience, covering 1.6 miles (2.6 km) with a significant elevation gain of 1673 feet (510 metres). As you ascend, you will journey through varied terrain, starting with sagebrush slopes before reaching beautiful aspen groves and pine forests. The route culminates at the…

Last updated: April 23, 2026

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Waypoints

A

Start point

Parking

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1

2.56 km

Peak Two

Highlight • Summit

Peak Two is marked by a "rooster comb" of rock sitting on the ridgeline, accessible with some minimal scrambling.

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B

2.64 km

End point

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Way Types & Surfaces

Way Types

2.57 km

< 100 m

< 100 m

Surfaces

2.15 km

431 m

< 100 m

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Elevation

Elevation

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Weather

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Friday 10 July

19°C

8°C

0 %

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Max wind speed: 7.0 km/h

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Frequently Asked Questions

How long does it typically take to hike the Flattop Sunnyside Trail?

The time to complete this hike can vary significantly based on individual pace and conditions. While some sources suggest as little as 40 minutes, a more realistic estimate for most hikers is between 1.5 to over 2 hours to reach the summit of Flattop Mountain. The trail involves a substantial elevation gain, so plan accordingly.

What is the terrain like on this route?

The trail offers diverse terrain. You'll start through sagebrush-covered mountainsides, transition into beautiful aspen groves and denser pine forests, and then ascend through rocky outcrops and patches of colorful wildflowers. The upper sections feature striking alpine tundra, leading to the flat, glacially carved summit of Flattop Mountain.

Is the Flattop Sunnyside Trail suitable for beginners?

While a popular route, this trail is generally considered moderate to challenging due to its significant elevation gain and steep sections. It's not typically recommended for absolute beginners unless they are in good physical condition and prepared for a strenuous climb. The average grade is around 17.6%.

What wildlife might I encounter on the trail?

Hikers often have the chance to spot local wildlife, including moose and black bears, especially in the forested and lower sections of the trail. Always maintain a safe distance and be aware of your surroundings.

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

Spring and fall are often recommended as the best times to visit to avoid summer crowds and enjoy pleasant temperatures. In the fall, the aspen groves offer vibrant displays of color. Winter hiking is possible with snowshoes or skis, but be aware of potential avalanche hazards.

Are dogs allowed on the Flattop Sunnyside Trail?

Yes, dogs are welcome on the trail! However, they must be kept on a leash at all times to protect wildlife and ensure the safety and enjoyment of all trail users.

What are the parking and trailhead access options for this hike?

The Flattop Sunnyside Trail is located in Chugach State Park near Anchorage, Alaska. Specific parking information for the trailhead should be checked locally, but it is generally accessible by car. It serves as a popular alternative to the older 'front' route up Flattop Mountain.

Are there any permits or entrance fees required for Chugach State Park?

As the trail is located within Chugach State Park, standard park entrance fees or parking passes may apply. It's advisable to check the official Alaska State Parks website for the most current information regarding fees and regulations before your visit.

What can I see along the route, and are there any notable viewpoints?

The trail offers spectacular panoramic views throughout the ascent. You'll be treated to amazing vistas of Anchorage and the inlet beyond, as well as expansive views of the surrounding valleys. The summit, known as Peak Two, provides an excellent vantage point for photography and enjoying the vast Alaskan landscape.

Does this trail intersect with other well-known paths?

Yes, the route primarily follows the Flattop Sunnyside Trail. However, sections of the hike also intersect with or are very close to parts of the Peak 3 Trail, the Peak 2 Trail, and the Old South Side Flat Top Trail, offering potential options for extended exploration.

Is this an out-and-back trail or a loop?

The Flattop Sunnyside Trail is primarily an out-and-back route to the summit of Flattop Mountain. While it connects to other trails, the most common way to experience it is to ascend and descend the same path.

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