36 CFR §13.905
- (a)The following are prohibited:
- (1)Group sizes exceeding 12 individuals on the east side of the park outside the Frontcountry Developed Area as defined by this subpart.
- (2)Group sizes exceeding 6 individuals on the west side of the park outside the Frontcountry Developed Area as defined by this subpart.
- (b)A map showing the east and west boundaries is available at the park visitor center.
- (c)The superintendent may authorize larger groups on a case-by-case basis.