Graham Cave

Graham Cave is a large limestone cavern set into a hillside with a wide natural opening and passages extending deeper into the formation. The space contains multiple archaeological layers showing evidence of past human occupation across different time periods.

People occupied this location across thousands of years, leaving behind tools and objects from different cultural periods. The different layers of findings show how ways of living changed across the millennia.

The site shows evidence of long human inhabitation, and visitors can see traces of different time periods layered in the cave floor deposits. These overlapping layers tell the story of many generations who stayed here.

This site sits within a state park that includes visitor facilities and information displays explaining the archaeological discoveries. Visitors should expect uneven ground and steps, especially when entering the cave itself.

This was the first site of its kind in the entire United States to receive this particular historical recognition. This designation made it a turning point for how cave sites came to be valued across the nation.

Location: Montgomery County

GPS coordinates: 38.90530,-91.57310

Latest update: December 11, 2025 11:05