This picture shows where the water runs into the cave, and the cave where the people actually lived was just beyond where the fence is shown.
This is the actual part of the cave where the people lived. It's hard to visualize because the upper part shown here is some 30 feet above the original area where they lived. The Smithsonian Institution, with support from the National Geographic Society, dug here from 1956 to 1958 and reached a depth of more than 32 feet. So the above picture which depicted them living in the cave was really a lot lower than what we are looking at in this picture.
The people of Russell Cave lived there about 10,000 B.C. to 500 B.C. through the Paleo and Archaic Periods, or about 9,000 years. Of course, it is speculation about what these people did, but through excavation they found tools and pottery, thereby figuring out what they did for food and living. They hunted deer, turkey, black bear, turtle, raccoon, squirrel, and other small animals. They also fished and foraged in the surrounding forest.