In early May 1953, George Martin Burhans sat down at his typewriter to write The Tri-State Caver — the first newsletter of the Hagerstown Grotto, a local chapter of the National Speleological Society.
Local cavers detail the beauty of caves and what fuels their passion to keep exploring. The Central Indiana Grotto is a group of cavers who meet monthly in Indianapolis. Each year they host an event ...
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