United States, Colorado, Boulder, Area: White Rocks; OSProperty: Ertl; Approx. 5.5 miles NE of Boulder. SE corner of the Ertl property. East of the trail and north of Leggett Ditch near sandstone breaks.
40.053794 -105.15476 +-1200m. WGS84
T1N R69W sec 17 NW¼
Georeferenced to ca center of Ertl Property (both Ertl I and II), ca 5 miles NE of Boulder with uncertainty radius encompassing entirety of Ertl Property.