16 U.S.C. § 22 : US Code - Section 22: Control of park by Secretary of the Interior; removal of trespassers

Search 16 U.S.C. § 22 : US Code - Section 22: Control of park by Secretary of the Interior; removal of trespassers

The Yellowstone National Park shall be under the exclusive
control of the Secretary of the Interior. In addition to the powers
and duties enumerated in section 3 of this title not inconsistent
with this section, he shall make regulations providing for the
preservation, from injury or spoliation, of all timber, mineral
deposits, natural curiosities, or wonders, within the park, and
their retention in their natural condition. The Secretary may, in
his discretion, grant leases for building purposes for terms not
exceeding thirty years, of small parcels of ground, at such places
in the park as may require the erection of buildings for the
accommodation of visitors. He shall provide against the wanton
destruction of the fish and game found within the park, and against
their capture or destruction for the purposes of merchandise or
profit. He shall also cause all persons trespassing upon the same
to be removed therefrom, and generally is authorized to take all
such measures as may be necessary or proper to fully carry out the
objects and purposes of this section.