The Forest Reserve Act authorized the president to set aside “forest reserves” from public domain lands to be managed by the Department of the Interior. “Forest reserves” later became National Forests.
The National Park Service Organic Act of 1916 established the National Park Service as part of the Department of the Interior. The new agency was charged with promoting and regulating the use of national parks, monuments, and reservations and preserving them “for the enjoyment of future generations.”
The Civilian Conservation Corps was established by Congress on March 31, 1933, to create jobs by employing young men in conservation, development, and infrastructure. The program put approximately three million young men to work between 1933 and 1942.