36 CFR § 13.905 - Group size.
§ 13.905 Group size.
(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.
[73 FR 67393, Nov. 14, 2008]