"Roba Ranch", Oregon topographic map, United States Geological Survey, United States Department of Interior, Reston, Virginia; displayed via ACME mapper, www.acme.com, 12 August 2013.
"Roba Ranch", National Register of Historic Places, www.nationalregisterofhistoricalplaces.com, 12 August 2013.
nps.gov
npgallery.nps.gov
"The Roba Ranch", National Register of Historic Places Registration Form, National Park Service, United States Department of the Interior, Washington, D.C., 27 September 2007.
"Cold Springs Guard Station", Ochoco National Forest, United States Forest Service, United States Department of Agriculture, Prineville, Oregon, 12 August 2013.