| Caption: |
Area in orange was covered by ash from the Long Valley caldera eruption approximately 700,000 years ago. Red circle around Long Valley (LV) has a radius of 120 km (75 mi.) and encloses the area subject to at least 1 m (3 ft.) of downwind ash accumulation if a similar eruption were to occur again. (From Miller, C. D., Mullineaux, D. R., Crandell, D. R., and Bailey, R. A. 1982. Potential hazards from future volcanic eruptions in the Long Valley—Mono Lake area, east-central California and southwest Nevada—A preliminary assessment. U.S. Geological Survey Circular 877) |
