CCC, officially the Emergency Conservation Work Program (ECW), was created in April 1933 and dissolved in 1942. A combined activity of the War Department, Department of Agriculture, Department of the Interior and Department of Labor, the program was, ostensibly, directed at reducing unemployment among certain male catagories. Young men in the inner cities were principal targets. Many were later absorbed directly into the army as the country mobilized for World War II. A Forest Service Monograph, Number FS-395, entitled "The Forest Service and The Civilian Conservation Corps: 1933-42", edited by Alison T. Otis, is available at many public libraries.
I try to avoid injecting personal opinion into postings but this one's "on the house" so I'll indulge myself (Mel Fisher's Golden Rule: Whoever provides the gold, makes the rules). Like many of FDR's "temporary recovery measures" - many of which are still with us (and still growing!!!) - the CCC had close parallels in some of Hitler and Stalin's programs of the period. Americans were so involved in being "grateful" they ignored the similarities. This continues to this day.