• Maquoketa Caves State Park Improvements - Maquoketa IA
    "The first park land was purchased in 1921. However, the majority of the park facilities were not constructed until the 1930's by the Civilian Conservation Corps (CCC) and the Works Progress Administration (WPA). Both programs resulted from the federal government effort to make work for Americans during the Great Depression. Their work included the stone lodge, Dancehall Cave walkway system, stone picnic circle and several hexagonal picnic shelters along the trail. Some of these structures have been restored and efforts continue." -Iowa Department of Natural Resources