What was the purpose of the civilian conservation corps (ccc) apex?

The Civilian Conservation Corps (created in 1933) was a government program that helped to employ millions of young American men between the ages of 18-25 to work on environmental projects all over the United States. This agency, created by FDR's New Deal, helped to plant billions of trees all across the US while helping to decrease the unemployment rate during America's Great Depression. Besides planting trees, this agency helped to create trails and organize many of the state parks we use today.

Because the discoveries were some of the oldest human remains.