United States, Arizona, Coconino, Coconino National Forest, Prime lake, 1.8 mi N of AZ 209, via FSR 128, along FSR 129A; on Anderson Mesa, between Upper Lake Mary and Marshall Lake, just E of USGS Obs and Perkins Telescope; ca. 7 mi S Flagstaff
35.1023 -111.5336 +-1250m.
T20N R08E S22
2198 meters
7210ft.
Potamogeton natans, P. pectinatus, Elodea, Polygonum