...by such means as will leave them unimpaired for the enjoyment of future generations. * * * * * * * " He (the Secretary of the Interior) may also grant...herein provided for, but for periods not exceeding twenty years; * * *." Section 2 of the Act to establish the Grand Canyon National Park (Act of February...

...its functions; (2) provides for the granting of privileges, leases, and permits for the use of the land for the accommodation of visitors in the various parks, monuments, or other reservations; (3) provides for maintenance of National Park approach roads. (4) provides for recruitment, training...

...such plant life as may be detrimental to the use of any of said parks, monuments, or reservations. He may also grant privileges, leases, and permits for...herein provided for, but for periods not exceeding thirty years; and no natural curiosities, wonders, or objects of interest shall be leased, rented,...

...such plant life as may be detrimental to the use of any of said parks, monuments, or reservations. He may also grant privileges, leases, and permits for...herein provided for, but for periods not exceeding thirty years; and no natural curiosities, wonders, or objects of interest shall be leased, rented,...

...such plant life as may be detrimental to the use of any said parks, monuments, or reservations. He may also grant privileges, leases, and permits for...monuments, or other reservations herein provided for, but ... no natural curiosities, wonders, or objects of interest shall be leased, rented, or granted to...

...Toward this end. the Secretary of the Interior is empowered to grant privileges. leases. and permits tor the use of land for the accommodation of visitors...the various parks. monuments. or other reservations provided for under section 2 of this title. but for periods not exceeding thirtl vears: and no natural...

...such plant life as may be detrimental to the use of any of said parks, monuments, or reservations. He may also grant privileges, leases, and permits for...herein provided for, but for periods not exceeding twenty years; and no natural curiosities, wonders, or objects of interest shall be leased, rented,...

...such plant life as may be detrimental to the use of any of said parks, monuments, or reservations. He may also grant privileges, leases, and permits for...herein provided for, but for periods not exceeding thirty years; and no natural curiosities, wonders, or objects of interest shall be leased, rented,...

...may grant certain privileges as expressly defined in section 3 of the act as follows : • • * He may also grant privileges, leases, and permits for...herein provided for, but for periods not exceeding twenty years; and no natural curiosities, wonders, or objects of interest shall be leased, rented,...

...such plant life as may be detrimental to the use of any of said parks, monuments, or reservations. He may also grant privileges, leases, and permits for...herein provided for, but for periods not exceeding twenty years ; and no natural curiosities, wonders, or objects of interest shall be leased, rented,...