Indiana Karst Conservancy – Sullivan, Wayne, Buddah, Robinson Ladder, Upper Twin Cave preserves and management
Richad Blenz Nature Conservancy – Buckner Cave Property
Indiana Cave Conservation Association
Cave Connection – Newsletter for Indiana Private Cave Owners
Bloomington Indiana Grotto (BIG)
Indiana University Caving Club
Windy City Grotto – Almost in Indiana and very active in caving in Indiana.
Louisville Grotto – Not in Indiana but real close!
Greater Cincinnati Grotto – Just across the state line!
Background photo is of Neversink Cave, AL by Kevin Smith
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