...provision authorizing the ;cretary of the Interior in his discretion to "grant leases for building jrposes for terms not exceeding ten years, of small parcels of ground, at ich places in said park as shall require the erection of buildings for the xomodation of visitors *...

...national park, Yellowstone, in 1872 required "the preservation, from injury or spoliation, of all timber, mineral deposits, natural curiosities or wonders within...park and their retention in their natural condition." This pattern has been followed, with rare exceptions, with respect to all national parks and monuments....

...national park, Yellowstone, in 1872 required "the preservation, from injury or spoliation, of all timber, mineral deposits, natural curiosities or wonders within...park and their retention in their natural condition." This pattern has been followed, with rare exceptions, with respect to all national parks and monuments....

...Park, •Wyoming, in order to "provide for the preservation, from injury or spoliation, of all timber, mineral deposits, natural curiosities, or wonders...park, and their retention in their natural condition," as stated in the Act of March 1, 1872. The Lacy Act of May 7, 1894, specified that "protection of the...

...protected in a manner to — provide for the preservation, from injury or spoliation, of all timber, mineral deposits, natural curiosities, or wonders...park, and their retention in their natural condition. This was followed by the Lacy Act of May 7, 1894, further elaborating on the care and management to...

...injury or spoliation, of all timber, mineral deposits, natural curiosities, or wonders, within the park, and their retention in their natural condition....discretion, grant leases for building purposes * * * for the accommodation of visitors. He shall provide against the wanton destruction of the fish and game...

...of the Interior * * * sha'll provide for the preservation, from injury or spoliation, of all timber, mineral deposits, natural curiosities or wonders within...and their retention in their natural condition." The national park concept decreed in this and subsequent national park acts is concerned with the "retention...

...section, he shall make regulations providing for the preservation from injury or spoliation of all timber, mineral deposits, natural curiosities, or wonders...condition. The Secretary may, in his discretion, grant, parcels of ground at such places in said park as shall require the erection of buildings for the accommodation...

...recreation purposes by the public and for the preservation from injury or spoliation of all timber, natural curiosities, or wonders within said park and their retention in their natural condition as far as practicable, and for the preservation of said park in a state of nature so far as is consistent...

...Secretary of the Interior to "* * * provide for the preservation from injury or spoliation, of all timber, mineral deposits, natural curiosities, or wonders...park, and their retention in their natural condition." Since that time, the national park movement has been a focnl point and fountainhead for evolving wilderness...