Code of Federal Regulations Title 36. Parks, Forests, and Public Property § 36.13.118 Cabin site compatibility

(a) When constructing, maintaining or repairing a cabin or other structure authorized under this subpart, to use materials and methods that blend with and are compatible with the immediate and surrounding landscape;  and

(b) When terminating an activity that involves a structure authorized under this subpart, to dismantle and remove the structure and all personal property from the park area within a reasonable period of time and in a manner consistent with the protection of the park area.