Mount Konocti is a volcano

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

 in Lake County

Lake County, California

Lake County is a county located in the north central portion of the U.S. state of California, north of the San Francisco Bay Area. It takes its name from Clear Lake, the dominant geographic feature in the county and the largest natural lake wholly within California...

, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 on the south shore of Clear Lake. At 4305 feet (1,312.2 m), it is the second highest peak in the Clear Lake Volcanic Field

Clear Lake Volcanic Field

The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite...

, which consists of numerous volcanic domes and cones ranging from 10,000 to 2.1 million years old.
The volcano is the most visible landmark in Lake County

Lake County, California

Lake County is a county located in the north central portion of the U.S. state of California, north of the San Francisco Bay Area. It takes its name from Clear Lake, the dominant geographic feature in the county and the largest natural lake wholly within California...

 other than the lake. The mountain is located between the towns of Lakeport

Lakeport, California

Lakeport is an incorporated city and county seat of Lake County, California. Lakeport is located on the west shore of Clear Lake, at an elevation of 1355 feet...

 and Clearlake

Clearlake, California

Clearlake is a city located in Lake County, California. Clearlake is located north-northwest of Lower Lake, at an elevation of 1417 feet...

. It lies directly south of Soda Bay and Riviera Heights and east of Kelseyville

Kelseyville, California

Kelseyville is a census-designated place in Lake County, California, United States. Kelseyville is located southeast of Lakeport, at an elevation of 1384 feet...

.