| Conservation, 1998 | |
| Conservation, 1999 | |
| Conservation, 2000 | |
| Conservation, 2001 | |
| Conservation, 2002 | Pictures by Kevin Toepke |
| Pictures by Chris Hacker | |
| Karst Encounters, 2002 |
October 5-6, 2002. Sponsored by the Blue Grass Grotto, OVR and the NSS. |