A nonprofit office at 190 E Yaney St in Bishop, serving as the base for an organization that teaches people about Sierra Nevada and Great Basin public lands. It runs bookstores in visitor centers and ranger stations across the region, leads interpretive hikes and presentations, trains certified interpretive guides, and offers hands-on learning for kids. It also leads land stewardship and conservation work. Events listed here include outdoor and nature programs, such as a wildlife tracking workshop, and the group hosts the Eastern Sierra History Conference each October. Its programs are for locals and visitors who want to learn more about the public lands of the Eastern Sierra.