Mount Shasta is a potentially active volcano at the southern end of the Cascade Range in Siskiyou County, California. At an elevation of 14,179 feet, it is the second-highest peak in the Cascades and the fifth-highest in the state. Mount Shasta has an estimated volume of 85 cubic miles, which makes it the most voluminous stratovolcano in the Cascade Volcanic Arc. The mountain and surrounding area are part of the Shasta–Trinity National Forest.
An active volcano is a volcano that has erupted during the Holocene, is currently erupting, or has the potential to erupt in the future. A volcano that is not currently erupting but could erupt in the future is known as a dormant volcano. Volcanoes that will not erupt again are known as extinct volcanoes.
The Shasta–Trinity National Forest is a federally designated forest in northern California, United States. It is the largest National Forest in California and is managed by the U.S. Forest Service. The 2,210,485 acre forest encompasses five wilderness areas, hundreds of mountain lakes and 6,278 miles (10,103 km) of streams and rivers. Major features include Shasta Lake, the largest man-made lake in California and Mount Shasta, elevation 14,179 feet (4,322 m).
Yamsay Mountain is a large shield volcano in the Cascade Range of south-central Oregon, located about 35 miles (56 km) east of Crater Lake on the border between Klamath County and Lake County. It is part of the Cascade Volcanic Arc but is located in a mountain range 30 to 50 miles behind the main Cascade volcanic front. The best known members of this enigmatic arc are the massive shields of Newberry Volcano, about 55 miles (89 km) farther north in Oregon, and Medicine Lake Volcano, about 80 miles (130 km) south in Northern California. Yamsay is the highest volcano in the eastern arc, almost 300 feet (90 m) higher than Newberry and Medicine Lake.
Cobb Mountain is the tallest mountain in the Mayacamas Mountains of California.
Boggs Mountain Demonstration State Forest is a state forest in Lake County, California that covers the northwest of Boggs Mountain. It was founded in 1949, and came into operation in 1950 when most of the site had been clear cut. The purpose was to demonstrate good practices in restoring and managing a forest. The state forest was open for recreational use, including camping, hiking, mountain biking etc. The 2015 Valley Fire destroyed 80% of the trees. The state forest as of 2021 was replanting saplings.
Forest Lake Resort was a resort in the Cobb Mountain area of Lake County, California, in an area of wet meadows along Kelsey Creek. Originally a campground, it was developed into a resort in the 1930s to exploit the growing automobile-based recreation market. The resort was sold in 1963. By 1989 it was longer operational, and was being considered for development as a community park site.
Glenbrook was a resort in Lake County, California. It was located 10 miles (16 km) south-southeast of Kelseyville, at an elevation of 2293 feet.
Hobergs is an unincorporated community in Lake County, California. It grew up around the former Hoberg's Resort.
Seigler Springs is a set of springs in Lake County, California around which a resort developed in the 19th century. In the 1930s the resort was expanded, and in 1947 an airport opened nearby. The resort declined in the 1960s. Part of it was separated out and became a residential subdivision, while part became a religious retreat. The 2015 Valley Fire caused great damage.
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.
Kelsey Creek is a watercourse in Lake County, California, United States, that feeds Clear Lake from the south. The watershed was forest-covered. In the lower parts it has been converted to farmland and for urban use. Higher up the forests have been cleared, regrown and cleared again. The northern part of the creek flows through a geothermal field that feeds power plants and hot springs. The wooded Cobb area in the higher part of the watershed holds resorts and resort communities, some dating to the 1850s.
Hoberg's Resort was a holiday resort in Lake County, California. The unincorporated community of Hobergs grew up around it. The resort started out in the 1890s as a sideline where a farmer's wife offered meals to travelers, and it then became an economical place for campers and hunters to stay. It expanded, and after the founder's grandsons took over in 1934 it grew into a large and fashionable resort catering to weekend visitors who motored up from the San Francisco Bay Area. There was a swimming pool, dining hall, bar and outdoors dance floor, as well as amenities like hairdressers, a barber, resident physician, coffee shop and general store. Hollywood celebrities, politicians and businessmen stayed at the resort and were entertained by big-name musicians. By the 1960s, the resort had gone into decline, and it closed in 1971. The main building was destroyed by the 2015 Valley Fire.
The Paul Hoberg Airport, or simply Hobergs Airport is an abandoned airport in Lake County, California, United States. It was opened in 1947 for use by guests of the nearby Hoberg's Resort, and was busy until the 1960s. By 1982 it had been abandoned.
Mount Hannah is a mountain in the Mayacamas Mountains of the Northern California Coast Ranges. It is in Lake County, California.
Big Canyon Creek is a creek in Lake County, California. It is a tributary of Putah Creek.
Harbin Mountain is a mountain in Lake County, California. It may be seen as a high point on a spur of Boggs Mountain or as a connected mountain to the southeast of Boggs Mountain.
Mahnke Peak is a 3,652 feet (1,113 m) mountain in Mendocino County, California.
Xyleborus monographus, the Mediterranean oak borer, is a species of ambrosia beetle in the family Curculionidae. It is native to oaks in the regions around the Mediterranean Sea, but since 2019 has been found in California, where the oak trees it infests may be more vulnerable.
