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Santa Cruz Mountains
The Santa Cruz Mountains ( Mutsun Ohlone: Mak-sah-re-jah, "Sharp Ridged Mountain of the Eagle" or "People of the Eagle Mountain") are a mountain range in central and Northern California, United States, constituting a part of the Pacific Coast Ranges. They form a ridge down the San Francisco Peninsula, south of San Francisco. They separate the Pacific Ocean from the San Francisco Bay and the Santa Clara Valley, and continue south to the Central Coast, bordering Monterey Bay and ending at the Salinas Valley. The range passes through the counties of San Mateo, Santa Clara, and Santa Cruz, with the Pajaro River forming the southern boundary. Geography The northernmost portion of the Santa Cruz Mountains, north of Half Moon Bay Road ( SR 92), is known as Montara Mountain; the middle portion is the Sierra Morena, which includes a summit called Sierra Morena, and extends south to a gap at Lexington Reservoir; south of the gap, the mountain range is known as the Sierra Azul. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Mateo County, California
San Mateo County ( ), officially the County of San Mateo, is a county (United States), county located in the U.S. state of California. As of the 2020 United States census, the population was 764,442. Redwood City, California, Redwood City is the county seat, the third-most populated city in the county after Daly City, California, Daly City and San Mateo, California, San Mateo. San Mateo County is included in the San Francisco–Oakland–Berkeley, CA MSA (metropolitan statistical area), Silicon Valley, and is part of the San Francisco Bay Area, the nine counties bordering San Francisco Bay. As of 2020, it has a median household income of $128,091, the List of highest-income counties in the United States, fourth-highest household income of any county in the nation behind Loudoun County, Virginia, Falls Church, Virginia, and Santa Clara County, California. The county covers most of the San Francisco Peninsula. The county is predominantly suburban and is home to many corporate cam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Bielawski
Mount Bielawski or Mount Bielewski (with an e instead of an a) is located in the Santa Cruz Mountains of California, near the San Francisco Bay Area. The mountain reaches an elevation of just to the southwest of the Santa Cruz – Santa Clara county line and Highway 35. It is the highest point in Santa Cruz County. The summit is thickly wooded so offers no views. Snow falls on the mountain some winters. The mountain is named for Casimir Bielawski who was a chief draughtsman of the Surveyor General's office. It has, also, been called Mount McPherson. Duncan Mc Pherson owned at the top of the mountain in the 1930s and 1940s. See also * List of highest points in California by county This is a list of 58 counties of the U.S. State of California by their points of highest elevation. 6 of the 50 highest county high points in the United States are in California. Mount Whitney, located in Inyo and Tulare counties, is th ... References Mountains of Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Thayer
Mount Thayer is a mountain in the Santa Cruz mountain range located in Santa Clara County, California. The summit is in a section of the abandoned Almaden Air Force Station, 1.5 miles northwest of Mount Umunhum. The elevation of the summit is at feet. An old derelict building, surrounded by telephone poles, is located on the summit. Mount Thayer, along with the surrounding property, is off limits to the public. See also * List of summits of the San Francisco Bay Area This is a list of named summits in the nine-county San Francisco Bay Area that are more than above sea level. Note that there are no natural features above in the city of San Francisco. Unless otherwise referenced, all data are from the Geogra ... References External links * {{DEFAULTSORT:Thayer, Mount Mountains of Santa Clara County, California Mountains of the San Francisco Bay Area Santa Cruz Mountains Mountains of Northern California ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Umunhum
Mount Umunhum ( ) is a peak in the Santa Cruz Mountains, located in Santa Clara County, California. It is the fourth-highest peak in the Santa Cruz Mountains, after Loma Prieta, Crystal Peak, and Mount Chual. Most of the mountain is located within the Sierra Azul Open Space Preserve. Geology Mount Umunhum consists of a geologic formation that is known as the '' Coast Range Ophiolite.'' This ophiolite is a piece of Middle Jurassic oceanic crust and mantle that has been obducted onto land and largely been converted to serpentinite. It has been extensively faulted and diapirically uplifted and eroded to form Mt. Umunhum and extensive outcrop areas throughout the Santa Cruz Mountain foothills and elsewhere. The Coast Range Ophiolite is also known to underlie the rocks of the Great Valley throughout central California. The exposure on the northeast face of Mt. Umunhum is one of the best Bay Area exposures of the Coast Range Ophiolite.Bailey, E. H., Blake Jr, M. C., and Jones, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1989 Loma Prieta Earthquake
On October 17, 1989, at 5:04 p.m. Pacific Time Zone, PST, the Loma Prieta earthquake occurred at the Central Coast (California), Central Coast of California. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, California, Santa Cruz County, approximately 10 mi (16 km) northeast of Santa Cruz, California, Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta, Loma Prieta Peak in the Santa Cruz Mountains. With an magnitude of 6.9 and a maximum Modified Mercalli intensity scale, Modified Mercalli intensity of IX (''Violent''), the shock was responsible for 63 deaths and 3,757 injuries. The Loma Prieta segment of the San Andreas Fault System had been relatively inactive since the 1906 San Francisco earthquake (to the degree that it was designated a seismic gap) until two moderate foreshocks occurred in June 1988 and again in August 1989. Damage was heavy in Santa Cruz County and less so to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epicenter
The epicenter (), epicentre, or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Determination The primary purpose of a seismometer is to locate the initiating points of earthquake epicenters. The secondary purpose, of determining the 'size' or magnitude must be calculated after the precise location is known. The earliest seismographs were designed to give a sense of the direction of the first motions from an earthquake. The Chinese frog seismograph would have dropped its ball in the general compass direction of the earthquake, assuming a strong positive pulse. We now know that first motions can be in almost any direction depending on the type of initiating rupture ( focal mechanism). The first refinement that allowed a more precise determination of the location was the use of a time scale. Instead of merely noting, or recording, the absolute motions of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morgan Hill, California
Morgan Hill is a city in Santa Clara County, California, at the southern tip of Silicon Valley in the San Francisco Bay Area. Morgan Hill is an affluent residential community, the seat of several high-tech companies, and a dining and recreational destination, owing to its luxury hospitality, wineries, and nature parks. History Prior to the arrival of Spanish colonists, Santa Clara Valley had been inhabited by the Tamien nation of Ohlone people for more than 6,000 years. In that area, the Matalan tribe lived in a hunter-gatherer society. Before the area was colonized as part of the Alta California province of the Viceroyalty of New Spain, the 1772 Spanish expedition led by Pedro Fages and Father Juan Crespí, the two explorers camped in the area around Morgan Hill alongside Llagas Creek. The location of their camp subsequently became a campsite for Spanish soldiers on their way from New Spain to Alta California. With the founding of Mission Santa Clara de Asís in 1777, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Azul
The Sierra Azul is a mountain range in Santa Clara County, California. It is the southern half of the Santa Cruz Mountains range, which is divided into two parts by California Highway 17 into what the colonizing Spanish called the Sierra Morena or "Brown Mountains" to the north and the Sierra Azul or "Blue Mountains" to the south. Part of the range is within the Sierra Azul Open Space Preserve. The highest peak is Mount Umunhum, the site of the former Almaden Air Force Station radar site and the current location of a NEXRAD weather radar of the National Weather Service which serves the San Francisco Bay Area The San Francisco Bay Area, commonly known as the Bay Area, is a List of regions of California, region of California surrounding and including San Francisco Bay, and anchored by the cities of Oakland, San Francisco, and San Jose, California, S ... and Monterey Bay Area. References External links Sierra Azul Open Space Preserve website— ''part of the Midpenin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lexington Reservoir
Lexington Reservoir is an lake#Types of lakes, artificial lake on the Los Gatos Creek (Santa Clara County, California), Los Gatos Creek near Los Gatos, California. The James J. Lenihan Dam, a high, thick earthen dam, forms the third-largest reservoir in Santa Clara County. Background The reservoir is in the foothills of the Santa Cruz Mountains, at an elevation of . California State Route 17, State Route 17 runs alongside the dam's western edge and over part of the reservoir. Alma Bridge Road (Limekiln Canyon Road) runs around the eastern side, connecting with 17 at the north end and again at the south end via other surface streets. The reservoir is contained in Lexington Reservoir County Park, which includes hiking trails in the hills with good views of the reservoir and of Silicon Valley. The Los Gatos Creek Trail starts at the dam and continues downstream along the creek's canyon. It is part of the Santa Clara Valley Water District and provides water for Silicon Va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montara Mountain
Montara Mountain, positioned between the unincorporated community of Montara, California, to the southwest and the city of Pacifica, California, to the north, forms the northern spur of the Santa Cruz Mountains, a narrow mountain range running the length of the San Francisco Peninsula that separates San Francisco Bay from the Pacific Ocean.VanderWerf, p. 7. Its highest point rises to above sea level. Montara and Pacifica are connected by the Tom Lantos Tunnels, which run through the Mountain. History The earliest historical trail remnant of Montara Mountain is the precolonial Indian Trail which traverses the ridgeline between Willow Brook Estates towards Saddle Pass following the high ridgeline above Green Valley and winding down towards Martini Creek. Remnants of this trail remain visible today. Colonial history The earliest descriptions of the area are from the Gaspar de Portolà, Portolá Expedition in 1769, "We halted near the shore, along which the passage was entire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Route 92
State Route 92 (SR 92) is a state highway in the U.S. state of California, serving as a major east-west corridor in the San Francisco Bay Area. From its west end at California State Route 1, State Route 1 in Half Moon Bay, California, Half Moon Bay near the coast, it heads east across the San Francisco Peninsula and the San Mateo–Hayward Bridge to downtown Hayward, California, Hayward in the East Bay at its junction with California State Route 238, State Route 238 and California State Route 185, State Route 185. It has interchanges with three freeways: Interstate 280 (California), Interstate 280 (the Junipero Serra Freeway), U.S. Route 101 (California), U.S. Route 101 (the Bayshore Freeway) in or near San Mateo, California, San Mateo, and Interstate 880 (California), Interstate 880 (the Nimitz Freeway) in Hayward. It also connects indirectly to Interstates Interstate 238 (California), 238 and Interstate 580 (California), 580 by way of Hayward's Foothill Boulevard, which carrie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
