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Mount Saint Helena (Wappo: Kanamota, "Human Mountain") [4] is a peak in the Mayacamas Mountains with flanks in Napa, Sonoma, and Lake counties of California. Composed of uplifted volcanic rocks from the Clear Lake Volcanic Field , it is one of the few mountains in the San Francisco Bay Area to receive any snowfall during the winter.
St. Helena (/ h ə ˈ l iː n ə / hə-LEE-nə) is a city in Napa County, California, United States. Located in the North Bay region of the San Francisco Bay Area, the population was 5,438 at the 2020 census. [8] St. Helena is a popular tourist destination, owing to its vineyards and culinary scene.
Sanitarium (formerly, Crystal Springs) [2] is an unincorporated community in Napa County, California. [1] It lies at an elevation of 587 feet (179 m). [1] Sanitarium is located 2.5 miles (4.0 km) north of Saint Helena.
The mountain has a sub-peak referred to as Cobb Mountain – Southwest Peak with an elevation of about 4483+ feet, (1367+ m) NAVD 88; [4] Southwest Peak lies on the Sonoma-Lake county line and is the highest point in Sonoma County. Nearby taller peaks like Mount Saint Helena and Snow Mountain can be seen from this summit. [5]
The range's highest point is Cobb Mountain, at 4,724 ft (1,440 m) in elevation, located in the central section. [4] There are several other peaks over 2,500 ft (762 m), including Mount Saint Helena and Hood Mountain.
CGIAR-CSI SRTM 90m DEM Digital Elevation database; SRTM30_PLUS bathymetry by Scripps Institution of Oceanography; Topographic map of Saint Helena by Barry Weaver and Jean-Pierre Langer; Saint Helena Island, a photograph by NASA Earth Observatory; Author: Oona Räisänen : Other versions: Derivative works of this file: Topographic map of Saint ...
The Vaca Mountains, which are separated from the Howell Mountains by Suisun Valley on the east side, merge with the latter range northeast of St. Helena also. The crest of the range, which culminates at 2,162 feet (659 m) feet in the twin summit of Twin Sisters , represents the divide between the drainage of the Napa River on the west side, and ...
The Napa River rises in northwestern Napa County just south of the summit of Mt. St. Helena in the Mayacamas Mountains of the California Coast Ranges. The source begins as seasonal Kimball Canyon Creek in Robert Louis Stevenson State Park at an elevation of 3,745 feet (1,141 m) which descends the southern slope of Mt. St. Helena to Kimball ...