Free for registered campers; non-campers pay $10 and need a Recreation Passport. Not open to non-campers at Baraga, Burt Lake, Cheboygan, Fort Custer, Hoeft, North Higgins Lake, Port Crescent, Rifle River and Twin Lakes.
Season
Sanitation stations are seasonal; check the park page.
Highway rest areas
MDOT's rest-area pages list restrooms, water, parking and picnic areas - no RV dump stations listed.