Rakestraw, Lawrence (1955). "Reserves in Oregon, Boundary Work, 1897–1907". A History of Forest Conservation in the Pacific Northwest, 1891–1913. NPS History. Retrieved February 21, 2024.
nwcouncil.org
"Grande Ronde Subbasin Plan"(PDF). Columbia River Inter-Tribal Fish Commission. May 28, 2004. Retrieved February 20, 2024.
"Catherine Creek Tributary Assessment"(PDF). Grande Ronde River Basin Tributary Habitat Program. U.S. Bureau of Reclamation. February 2012. Archived from the original(PDF) on February 24, 2024. Retrieved February 21, 2024.
Christensen, Niklas; Salminen, Ed (January 31, 2018). "Wallowa County Water Assessment". County of Wallowa. Retrieved February 22, 2024.
web.archive.org
"Catherine Creek Tributary Assessment"(PDF). Grande Ronde River Basin Tributary Habitat Program. U.S. Bureau of Reclamation. February 2012. Archived from the original(PDF) on February 24, 2024. Retrieved February 21, 2024.