44 THE NATIONAL PARK SERVICE 



in charge of officers of the Department of the Interior in the 

 vicinity — General Land Office employees, etc. In a few cases 

 custodians have been employed at nominal salaries, and in the 

 case of Muir Woods custodian service has been paid out of the 

 appropriation for protecting public lands. Many of the monu- 

 ments — for example, The Devils Tower in eastern Wyoming — 

 will need no custodians, being practically injury proof. In 

 the case of monuments like the Southwestern Ruins and the 

 Petrified Forest, which are vulnerable to the vandal and de- 

 spoiler, it is the policy to provide protection. A ranger has 

 recently been placed in the Petrified Forest. 



The principal facts relating to the individual monuments 

 are set forth on pages 45 and 46 : 



Parks and Moniunents not Administered by the National 

 Park Service. Although this monograph is concerned pri- 

 marily with the National Park Service and the parks and 

 monuments under its jurisdiction, brief mention should be 

 made of a number of national parks and monuments under 

 other control. A complete list of them is contained in the 

 tables on pages 47 and 48 : 



In addition to the parks listed in these tables, there was for- 

 merly another national park under the War Department. A 

 portion of Mackinac Island, Michigan, possessed that status 

 from 1875 to 1895, when it was turned over to Michigan for 

 use as a state park. 



Of the monuments in these tables, those under the Agricul- 

 ture Department are all located within the bounds of forest re- 

 serves, that being the determining factor which placed them 

 under the Agriculture Department instead of the Interior De- 

 partment at the time of their creation. A monument may be 

 transferred from the Agriculture Department to the Interior 

 Department at any time by simply revoking the forest reserva- 

 tion covering its area. The military monuments, by the same 

 token, are located on military reservations. 



Growth of Popular Interest in the Park System. In 1908 



