These old mines where operated from the beginning of the 1900's up till about the mid 1990's. They mines limestone that was about 99.99% pure calcium. This was one of the purest calcium deposits in the United States. It has been owned by many major chemical companys through out its history. Now part of its a nature trail. The other side is a underground dry storage for the National Archives.The underground tunnels are not opened to the public yet but I talked to a guy there today and he said in about two months they will be.
This was the old maintains shop and power house. Many of these old mines where the first to have electricity in the area. they had their own power generating plants. The first pics is of the shop. The old forge is where they would heat and sharpen the drill bits.








This was the old maintains shop and power house. Many of these old mines where the first to have electricity in the area. they had their own power generating plants. The first pics is of the shop. The old forge is where they would heat and sharpen the drill bits.









