Schoolroom Glacier is a small glacier in Grand Teton National Park in the U.S. state of Wyoming. This Teton Range glacier lies adjacent to the south Cascade Canyon trail at an altitude of 10,400 ft, approximately 12 mi from the trailhead at Jenny Lake. The glacier has many of the classic textbook details of a glacier, namely, well defined terminal and lateral moraineā¦Schoolroom Glacier is a small glacier in Grand Teton National Park in the U.S. state of Wyoming. This Teton Range glacier lies adjacent to the south Cascade Canyon trail at an altitude of 10,400 ft, approximately 12 mi from the trailhead at Jenny Lake. The glacier has many of the classic textbook details of a glacier, namely, well defined terminal and lateral moraines, crevasses, a proglacial lake and related features which led to the naming schoolroom.