Amphitheater Lake Trail, Mountain trail in Grand Teton National Park, Wyoming.

Amphitheater Lake Trail is a hiking route in Grand Teton National Park that climbs through changing landscapes to reach two alpine lakes high in the mountains. The path follows forested sections at lower elevations before opening to exposed slopes and rocky terrain near the water.

The trail lies within Grand Teton National Park, established in 1929 to protect the Teton Range and Jackson Hole. The route to Amphitheater Lake climbs from the Lupine Meadows trailhead, gaining over 3,000 feet in about 5 miles, and forks at the 2-mile mark where the Garnet Canyon Trail branches south and west.

The trail starts at Lupine Meadows, where a parking area gives access to the route. Two miles up, the path forks and the Garnet Canyon Trail branches south and then west into Garnet Canyon. Near the top, hikers pass Surprise Lake, which has a backcountry camping site open to those holding a free permit.

Start from Lupine Meadows parking area in the early morning to avoid crowds and make the most of daylight on this long climb. Bring plenty of water and extra clothing layers since conditions change rapidly with elevation gain.

The trail forks at the 2-mile (3.2 km) mark, where the Garnet Canyon Trail branches south and then west into Garnet Canyon. Shortly before Amphitheater Lake, hikers pass Surprise Lake, which has a backcountry camping site available with a free permit. Amphitheater Lake itself lies southwest of Disappointment Peak.