Civilian Conservation Corps

The Civilian Conservation Corps (CCC) was a government work relief program that ran from 1933 to 1942 in the United States for unemployed, unmarried men ages 18–25 and eventually expanded to ages 17–28, who volunteered amid widespread unemployment. The CCC was a major part of President Franklin D. Roosevelt's New Deal that supplied manual labor jobs related to the conservation and development of natural resources in rural lands owned by federal, state, and local governments.

Source: Wikipedia — Civilian Conservation Corps (CC BY-SA 4.0)