YES Club students explore the world beneath their feet. Combining history, cave geology, earth science, physical science, and conservation, YES Club members experience the diversity of cave life and the impact of human underground activities (e.g., mining) on soil, erosion and water quality. In Underground Ecosystems students embark on an underground adventure, exploring caves to find out what lives underground (through our partnership with Cave of the Winds), and visiting mines (specifically visiting the Newmont Cripple Creek and Victor Gold Mine). Catamount Institute’s programs provide fully encompassing lessons on renewable and nonrenewable resources. As a long-term partner, Newmont Cripple Creek and Victor Gold Mine expose the YES participants to mineral extraction practices and ecosystem restoration. Each club demonstrates its new subterranean knowledge through environmental service and research projects presented at the Symposium at Colorado College.