United States, Colorado, Boulder, Area: Doudy Draw; 1/16 mi north of county line.
39.914357 -105.262428 +-250m. WGS84
T1S R70W S31 SE1/4 of SE 1/4.
Georeferenced to Doudy Draw (as identified by USGS Topo) 1/16 miles north of Jefferson/Boulder County line with uncertainty radius extending 250 meters.