M-K Campground is a free, primitive 10-site campground on Rock Creek offering first-come, first-served camping with pit toilets and bear-safe food storage, though no potable water or hookups are available.

Located 3 miles up Main Fork Rock Creek Road near the Beartooth Highway, the campground features spacious wooded sites along the stream and serves as an excellent base for accessing multiple hiking trails in the area.

Note that the access road is rough and rocky with high-clearance vehicles recommended; the campground fills quickly on summer weekends and holidays, and has a 16-day stay limit.