, Auditorium
Pless Cave near Bedford, Indiana was mapped to 2.7 miles by the Mid Illinois Grotto in the 1960s, then largely set aside. Recent exploration has added more than 6,000 feet of new passage — most of it surveyed in 2025 — and has raised the exciting possibility of a connection to nearby Blue Spring Cave, one of Indiana's longest at nearly 21 mapped miles.
Dave Everton