Founded in 1952 for exploration and mapping trips. Includes calendar of events, newsletter, photos, meeting and contact information.

Features a calendar of events, a newsletter, a photo gallery, links and contact information.

Member of the NSS. Dedicated to conservation, exploration and research. Includes contact information, newsletter, calendar of events, library holdings and photo galleries.

Affiliated with the National Speleological Society. Dedicated to study and preservation of caves in Kentucky, Indiana and Ohio. Includes contacts, projects, meeting, and membership information.

Located in Springfield, Ohio and a chapter of the NSS since 1980. Promotes exploration, scientific study, safety and conservation. Includes calendar of events, equipment tips, photos and contacts.