Sims Flat Campground (former CCC Camp) - Sims CA The Sims Flat Campground on the Sacramento River occupies the site of a former Civilian Conservation Corps (CCC) camp, known as the Castella Camp (Castella is a larger town just to the north). The CCC camp operated from 1934 to 1939.
It is unknown to us when the US Forest Service opened the campground at this site. Traces of the CCC camp still remain, such as the stone steps that led up to the former commanding officer's house and administration building.
A plaque at the bottom of the steps reads:
"CCC Camp (1934-1939). With its wooded valley and beautiful river setting, Sims was...