Surprise Lake (Teton County, Wyoming)
Surprise Lake is a lake in Grand Teton National Park, in the U. S. state of Wyoming. Surprise Lake is on  east of Amphitheater Lake and can be accessed via a strenuous climb of just under  round trip from the Lupine Meadows trailhead. The National Park Service has three backcountry campsites at Surprise Lake which are allocated by permit only. References

Lakes of Grand Teton National Park