As this controversy raged Dill reopened Cathedral Cave, another cave on the property 1 times as long as Onondaga, under the name Missouri Caverns. New trails and lights were installed in the cave, and a large column formation within the cave was renamed the Liberty Bell in honor of the 1976 Bicentennial. The cave was closed soon after the defeat of the dam project in 1978. For several years it was subject to vandalism and theft that destroyed the lighting and visitor building.