Steen, Harold K. (1976) "The U.S. Forest Service: A History" During his administration, President Roosevelt set aside 150 national forests, the first 51 federal bird reservations, five national parks, the first 18 national monuments, the first four national game preserves and the first 24 reclamation, or federal irrigation, projects; Theodore Roosevelt Association webpage; "The Conservationist" http://www.theodoreroosevelt.org/site/c.elKSIdOWIiJ8H/b.8344385/k.114A/The_Conservationist.htm the national forests alone consisted of 150000000 acres of land by the end of his term in 1909.