Jahnavi Girl's name meaning, origin, and popularity See the boy version of this name
Map & Aerial Image. Long Valley map, photos, satellite view and comments. Long Valley is a Valley in Lake County, CA with an elevation of 1,083 feet, or 330 meters above sea level. A satellite image of the Long Valley area in Lake County, CA. Click the map image to see more detail and to pan and zoom.
Much of the Long Valley area of eastern California is covered by rocks formed during volcanic eruptions in the past 2 million years. A cataclysmic eruption 760,000 years ago formed Long Valley Caldera and ejected flows of hot glowing ash(pyroclastic flows), which cooled to form the Bishop Tuff.