| Name | Clausland Mountain Tunnels |
| Address | Valenza Lane , Blauvelt State Park, Nyack, New York, 10960, United States |
| Date | 0000-00-00 |
| Time | 00:00:00 |
| Category | unknown |
| Description | These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.... |
| Coordinates | 41.07130, -73.94290 |
| Web address | /places/claus-land-mountain-tunnels |