Pierce Butler, Swendig v. Washington Water Power Company…
“ In support of this contention, they stress the concluding clause of the act, stating that the permission given 'shall not be held to confer any right or easement or interest in, to, or over any public land, reservation, or park.' The purpose of the act is to grant to the Secretary power 'to permit the use of rights of way' through the lands referred to. And, in order that control over them may be retained, it is provided that the Secretary in his discretion may revoke such permits. The enterprises mentioned in the act involve expensive and permanent construction. ”
