Flattop Mountain, Mountain summit in Chugach State Park, Alaska, United States.

Flattop Mountain is a 3,510-foot (1,070 m) summit in Chugach State Park just east of Anchorage. From the Glen Alps trailhead a 1.5-mile (2.4-km) trail gains 1,280 feet (390 m) to a plateau; a harder path continues from the plateau loop to the peak. The top is blocky tan, orange and grey rock above green slopes, with snow lingering in gullies.

Flattop Mountain lies in Chugach State Park, established in 1970 east of Anchorage. The peak's proximity to the city made it the most climbed mountain in Alaska, and its summit has long hosted campouts at the summer and winter solstices. The 1.5-mile trail from the Glen Alps trailhead, gaining 1,280 feet to the plateau, is the usual route.

Flattop is the most climbed mountain in Alaska, used for hiking, climbing, berry picking, paragliding and backcountry skiing. Campouts are held on the summit at the summer and winter solstices. On very clear days Denali, Mount Foraker and Mount Spurr can be seen from the top.

The Glen Alps trailhead has restrooms and marked paths for different hiking levels. Snow and ice are common in winter months, so check conditions before heading out during colder seasons.

Flattop is the most climbed mountain in Alaska, and campouts are held on its summit at both the summer and winter solstices. On very clear days, Denali, Mount Foraker and Mount Spurr can be seen from the top.