From the record
“Ranch Rural Historic Landscape is a historic area that incorporates the J.O. Ranch, established in 1885 in Carbon County, Wyoming.”
Wikipedia article J. O. Ranch Rural Historic Landscape, CC BY-SA 4.0.
One of 43 National Register listings published here for Carbon County · listed in 2010 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service