Vulcan Materials Quarry
By CheesyCheetah @ 2011-03-26 19:14:40
This rock quarry is located in Racine, WI and actually has a tunnel on the west face of the quarry that leads underneath the State Hwy32 there under another quarry that filled with water and comes out into another section or rock quarry. If you take a close look you can see the tunnel. Its quite complex.