Camp NP-1 (DNP-1), located southeast of the cave entrance in Wind Cave Canyon, was part of the Civilian Conservation Corps, a federal relief program during 1933-1942 that gave jobless men work renovating abused lands. The Army built 48 200-man camps in South Dakota and provided food, clothing, medical care, pay, and programs of education, recreation, and religion for 23,709 enrollees, single men aged 17-25 who sent $25 of their $30 wage to their families, and for war veterans, while camps and work projects were supervised by another 2834 men. The Office of Indian Affairs ran smaller units for 4554 American Indians. Camp Wind Cave was part of a national CCC program to improve the nation’s park system, and under National Park Service supervision, enrollees developed Wind Cave National Park and Jewel Cave National Monument. At Wind Cave they renovated tour trails and installed the 208 foot elevator shaft and building, concrete steps, and indirect lighting; constructed the park water and sewer systems, parking area, stone guard rails, 18.6 miles of big game fence, the pigtail bridge and several smaller bridges, and several miles of road; built ten buildings; helped the WPA remodel five others; and landscaped the headquarters area and state highway. At Jewel Cave, they renovated the cave, disposed of old buildings, and built a headquarters building, parking lot, and an 800 foot trail.