Seigler Mountain is a mountain in the

Mayacamas Mountains The Mayacamas Mountains are located in northwestern California in the United States. The mountain range is part of the Northern Inner Coast Ranges, of the California Coast Ranges System. Geography The Mayacamas Mountains are located south of th ...

of the Northern

California Coast Ranges The Coast Ranges of California span from Del Norte County, California, Del Norte or Humboldt County, California, south to Santa Barbara County, California, Santa Barbara County. The other three coastal California mountain ranges are the Trans ...

. It is in

Lake County, California Lake County is a County (United States), county located in the north central portion of the U.S. state of California. As of the 2020 United States census, 2020 census, the population was 68,163. The county seat is Lakeport, California, Lakepor ...

Name

The mountain is named after Thomas Seigler, who discovered the Seigler Springs to the east of the mountain, where a resort grew up by the 1870s.

Physical

The mountain is in Lake County, California. It has an elevation of . Clean prominence is . Isolation is . The nearest higher neighbor is

Mount Hannah Mount Hannah is a mountain in the Mayacamas Mountains of the Northern California Coast Ranges. It is in Lake County, California. Location Mount Hannah is in Lake County, California. It is one of the mountains in the Cobb Mountain Area, many of w ...

to the WNW.

Location

Seigler Mountain is one of the mountains in the Cobb Mountain Area, which have a volcanic origin. Others are

Cobb Mountain Cobb Mountain is the tallest mountain in the Mayacamas Mountains of California. Location Cobb Mountain's main summit is located in Lake County, west of the town of Cobb. Like nearby Mount Saint Helena, Cobb Mountain is tall enough to receiv ...

, the most dominant,

and

Boggs Mountain Boggs Mountain is a mountain the Mayacamas Mountains in Lake County, California. Part of the mountain holds the Boggs Mountain Demonstration State Forest. About 80% of the trees were burned in the September 2015 Valley Fire. Name In the early day ...

. There are isolated small valleys and basins between the mountain peaks. Seigler Mountain is separated from Mount Hannah by Salminas Basin, a large mountain meadow with an unusual complex of wetlands that feeds Cole Creek. Flows of porphyritic lavas from Mount Hannah and Seigler Mountain cover about . The mountain was volcanically active 600,000 years ago, and flows from the mountain overlaid white bedded tuff to the north of Howard Springs.

Ecology

A delimitation survey published in 2020 found that Seigler Mountain was infested by Mediterranean oak borers (''Xyleborus monographus''), a type of non-native invasive beetle that mainly attacks oak species. In California it most often attacks

valley oak ''Quercus lobata'', commonly called the valley oak or roble, is the largest of the California oaks. It is endemic to the state, growing in interior valleys and foothills from Siskiyou to San Diego counties. Deciduous, it requires year-round grou ...

, and less often attacks

blue oak ''Quercus douglasii'', known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. It is California's most drought-tolerant deciduous oak, and is a dominant species in the b ...

Notes

Sources

* * * * * {{DEFAULTSORT: Mountains of Lake County, California Mayacamas Mountains Volcanoes of California Pleistocene lava domes Lava domes of the United States