USGS Identifier

Title: Long Valley Observatory

Photos of cinder cones in the Long Valley area

Several small cinder cones are located on the floor and rim of Long Valley caldera. The youngest cones in the area include Red Cones 5 km south of Mammoth Mountain and Black Point on the north shore of Mono Lake. Geologists estimate that Red Cones may have erupted as recently as about 5,000 years ago and Black Point about 13,000 years ago. The other cones on the caldera floor and along the rim range in age from 228,000 to 64,000 years.

Cinder cone atop west rim of Long Valley Caldera, California View from atop Mammoth Mountain toward the north; note red cinder cone on the west wall of Long Valley caldera.
Cinder cone atop Mammoth Crest, Long Valley area, California View of a cinder cone from Horseshoe Lake toward the south-southwest.
Red Cones, Long Valley area, California View of Red Cones from atop Mammoth Mountain toward the southwest.
Red Cones, Long Valley area, California Close aerial view of Red Cones toward the east-northeast.

Back to photo gallery introduction

 

| Home | Current Condition | Monitoring Data | Volcano Hazards |
| Photo Gallery | Area Maps | Geologic History | Response Plan |


U.S. Department of the Interior, U.S. Geological Survey, Menlo Park, California, USA
URL http://lvo.wr.usgs.gov/gallery/CinderCones_1.html
Contact: Long Valley Web Team
Last modification: 14 October 1999 (SRB)