Amphitheater Lake
Amphitheater  Lake is located in Grand Teton National Park, in the U. S. state of Wyoming. Amphitheater Lake is only  west of Surprise Lake and can be accessed via a strenuous climb of just under  round trip from the Lupine Meadows trailhead. Disappointment Peak is  WNW of the lake.

References

Lakes of Grand Teton National Park