Grassy Lake Campground offers 14 primitive, free dispersed campsites along Grassy Lake Road in the John D. Rockefeller Jr. Memorial Parkway, accessible first-come, first-served from mid-June onward.

Sites feature vault toilets, bear-resistant food storage boxes, and fire pits, with no potable water available; the long dirt road access requires careful driving and may challenge larger RVs.

The quiet, uncrowded setting provides good fishing opportunities and lake access, making it an excellent base for exploring the Yellowstone and Grand Teton area.