Bone Cave (also Big Bone Cave or Bonecave) is an unincorporated community in Van Buren County, Tennessee, United States.
It lies just off U.S. Route 70S northwest of Spencer and southeast of Rock Island.
Big Bone Cave was named for the discovery of a giant ground sloth skeleton in 1811 during the mining of cave dirt to be processed for saltpeter.
[3] A post office called Bone Cave was established in 1866, and remained in operation until it was discontinued in 1977.
This Van Buren County, Tennessee geography–related article is a stub.