Park admission $6 (nonresidents per private vehicle); $4 (nonresidents arriving by other means); free (Montana residents with ID). Camping $24-$28 (nonresidents); $18-$20 (nonresidents with a Montana State Park passport); $14-$18 (Montana residents with ID).
Park daily 8-7, Memorial Day-Labor Day; 8-dusk, May 1-day before Memorial Day; 8-5, rest of year. Visitor center daily 10-7, May-Sept.; Sat.-Sun. 11-6, in Oct. Closed Christmas Eve and Christmas. Allow 1 hour minimum.