36 C.F.R. § 7.77 Mount Rushmore National Memorial.
Title 36 - Parks, Forests, and Public Property
(a) Climbing Mount Rushmore is prohibited. [32 FR 13071, Sept. 14, 1967]
Title 36: Parks, Forests, and Public Property
PART 7—SPECIAL REGULATIONS, AREAS OF THE NATIONAL PARK SYSTEM
§ 7.77 Mount Rushmore National Memorial.

