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The Rockcastle Karst Conservancy
The Great Saltpetre Preserve

  The Great Saltpetre Preserve
  P.O. Box 1406
  Mount Vernon, KY 40456


Dinner In The Mountain
Was Held Sept. 24, 2016
in Great Saltpetre Cave.


2021 Open House - Free Cave Tours
      Has Been Rescheduled to:

Saturday, October 2, 2021 - 10am to 4pm
  Sunday, October 3, 2021 - 10am to 4pm
Public Welcome - More Information

With the relaxing of restrictions by the State of Kentucky, the GSP Committee has re-opened the Preserve for visitation by member cavers and their guests, effective June 12, 2020. Sponsors must accompany guests at all times.
Click Here to View the Visitation Health Guidelines.

Welcome to the internet home of the Great Saltpetre Preserve of Rockcastle County, Kentucky. The Great Saltpetre Preserve is the home of a historic limestone cave once mined for saltpeter. The cave is now normally closed to visitors, except for the annual Open House. The remainder of the grounds consist of a natural preserve consisting mostly of pasture and woodlands. The property is managed for historical purposes in an attempt to preserve a part of Kentucky's natural beauty for generations to come.

Bringing a group of 12 or more people to GSP? You must complete a Sponsor Form.
Please see the Group Sponsorship page.

About the Preserve

Information and history about the preserve are now available online. Please also read the FAQ's and rules of visiting the preserve.

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Liability Waiver

Everyone who visits or camps at the GSP preserve must complete and have on file a liability waiver. For more information on this and to download the form, please...

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Photo Galleries

After a long time offline, photo galleries are back online. Check these to see photographs of the preserve, Great Saltpetre Cave, and recent events held on-site.

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Unless indicated otherwise, donations will go into the general fund.  If you wish for a donation to go towards a specific fund, please indicate in the "Message to Seller" section when checking out with Paypal.

Thank you for your contribution!


Site Last Updated On June 5, 2021

The Rockcastle Karst Conservancy Home Page

Web Site Updates by Gary Bush -