United States, Wyoming, Weston, Thunder Basin National Grassland and Vicinity: ridge E of Lone Tree Creek, on Raven Creek or County Road 18, ca 34 air mi W of Newcastle; ca 25 air mi S of Moorcroft. E1/2 S4.
TRS: T45N R67W sec 4
1408-1451 meters Verbatim Elevation:
Grassy ravine floor with silver sagebrush.
Rocky Mountain Herbarium (RM), University of Wyoming.