Keywords: Rockhouse Cliffs Rockshelters warning sign.jpg 86000918 38 3 36 N 86 34 40 W An anti-vandalism warning sign at the w Rockhouse Cliffs Rockshelters located at the mouth of Rockhouse Hollow in the Hoosier National Forest northwest of Derby Indiana Derby in Union Township Perry County Indiana Union Township Perry County Indiana Perry County Indiana United States The rockshelters are archaeological site archaeological sites and are listed together on the National Register of Historic Places The sign is placed by the US Forest Service and as such is in the public domain per PD-USGov-USDA-FS Own 2012-01-27 User Nyttend Nyttend Prohibition signs Rockhouse Cliffs Rockshelters Scenery pictures by User Nyttend |