Statistics for occurrence #1 of “northwestern Wyoming” in alphabetic letter P, entry group 1, entry parks-in-the-united-states of Harper's Encyclopedia of United States History:
Yosemite Park and Mariposa Grove, on the Merced River in Mariposa county, Cal., discovered in 1851, and established by Congress1864
Yellowstone National Park, 3,575 square miles, nearly all in northwestern Wyoming , established by act of CongressMay 1, 1872
A State forestry commission was appointed by New York State for the preservation of the Adirondack forest1885
State reservation at Niagara Falls opened to...
† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.