16 km SE Flagstaff, Walnut Canyon National Monument, Coconino County, Arizona, USA
July 17, 2018
2033 m 35°10'17.75"N 111°30'30.38"W, Black Light 8-9 PM, Coll: Gary Alpert,near visitor center, WP 235
Deposited in the
Museum of Northern Arizona (MNA) for the National Park Service
Contributed by
Gary Alpert on 19 July, 2018 - 4:11pm
Last updated 25 November, 2020 - 11:19am