- This 1,477-acre reservoir is located near the Wyoming-Idaho border between Yellowstone and Grand Teton National Parks. Fair access via Forest Service Rd. 135, East of U.S. 89/287. Fish species include rainbow, cutthroat, and lake trout. No improvements, services, or facilities.
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Grassy Lake, Targhee National Forest, 420 Bridge St.
, Saint Anthony, ID, 83445, Phone: 208-624-3151