Lenox Crater is a
cinder cone
A cinder cone or scoria cone is a steep, volcanic cone, conical landform of loose pyroclastic rock, pyroclastic fragments, such as volcanic ash, clinkers, or scoria that has been built around a volcanic vent. The pyroclastic fragments are forme ...
located in the
San Francisco Volcanic Field in
Coconino County
Coconino County is a County (United States), county in the North Central Arizona, North-Central part of the U.S. state of Arizona. Its population was 145,101 at the 2020 United States census, 2020 census. The county seat is Flagstaff, Arizon ...
, near
Flagstaff, Arizona
Flagstaff ( ), known locally as Flag, is the county seat of Coconino County, Arizona, in the southwestern United States. As of the 2020 United States census, the city's population was 76,831.
Flagstaff is the principal city of the Coconino Cou ...
, an area known for volcanic activity. The volcano erupted approximately 1,000 years ago, filling a small depression with ash and volcanic cinders. The lava flow from the eruption flowed near the base of
Sunset Crater.
References
{{coord, 35.3602863, -111.5298798, format=dms, type:mountain_region:US-AZ_source:GNIS, display=title
Volcanoes of Arizona
Dormant volcanoes