Locality: United States, Colorado, Jefferson, Eagle Ridge. In a pit of a former mine on the east side of the locally named “Eagle Ridge,” 400 m. west of the intersection of US Highway 6 and Heritage Road, 3.76 km. south of the GNIS location of Golden.
Imager: Aviana Eder; Date Imaged: 9/27/2021; Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado | Nomenclature per FNANM. This area was collected by Handsford T. Shacklette (27 Jun 1959, 24 vouchers at COLO), but Humulus was not among his collections.; A little past its prime, but an interesting collection given the affinity of the Hops Azure butterfly.