ThePacific Coast Ranges, are the series of mountain ranges that stretch along the West Coast of North America from Alaska south to Northern and Central Mexico.
The Transverse Ranges are a group of mountain ranges of southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within Santa Barbara, Ventura, Los Angeles, San Bernardino and Riverside counties. The Peninsular Ranges lie to the south. The name Transverse Ranges is due to their east–west orientation, making them transverse to the general northwest–southeast orientation of most of California's coastal mountains.
The Santa Ynez Mountains are a portion of the Transverse Ranges, part of the Pacific Coast Ranges of the west coast of North America. It is the westernmost range in the Transverse Ranges.
The San Rafael Mountains are a mountain range in central Santa Barbara County, California, U.S., separating the drainages of the Santa Ynez River and the Santa Maria River. They are part of the Transverse Ranges system of Southern California which in turn are part of the Pacific Coast Ranges system of western North America.
The Sierra Madre Mountains are a mountain range primarily in northern Santa Barbara County and extending into northwestern Ventura County in Southern California, western United States. It is a range of the Inner South Coast Ranges group, and is the southernmost reach of the California Coast Ranges, which are themselves part of the Pacific Coast Ranges of western North America.
The Sierra Madre Oriental is a mountain range in northeastern Mexico. The Sierra Madre Oriental is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that form the western "backbone" of North America, Central America, South America and Antarctica.
The Coast Ranges of California span 400 miles (640 km) from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains.
The Topatopa Mountains are a mountain range in Ventura County, California, north of Ojai, Santa Paula, and Fillmore. They are part of the Transverse Ranges of Southern California.
The La Panza Range is a mountain range in the Central Coast of California region in San Luis Obispo County, east of the small town of Santa Margarita. It is one of the California Coast Ranges and in the Los Padres National Forest.
The Sierra Madre de Oaxaca is a mountain range in southern Mexico. It is primarily in the state of Oaxaca, and extends north into the states of Puebla and Veracruz.
The San Rafael Wilderness is a wilderness area in the mountains of north central Santa Barbara County, California, United States. It is completely contained within the Los Padres National Forest, and is north of the city of Santa Barbara and east of Santa Maria. Formed in 1968, it was the first wilderness area to be created from a previously designated Primitive Area after the passage of the 1964 Wilderness Act. It also includes the Sisquoc Condor Sanctuary, created in 1937, which is the oldest designated sanctuary for the large endangered birds.
The Dick Smith Wilderness is a wilderness area in the mountains of eastern Santa Barbara County, California, United States, with a portion in Ventura County. It is completely contained within the Los Padres National Forest, and is northeast of the city of Santa Barbara and north of the city of Ojai. It is most easily accessible from two trailheads off State Route 33, which runs north from Ojai. It is adjacent to the large San Rafael Wilderness on the west and the Matilija Wilderness on the south. Across Highway 33 to the east, and also in the Los Padres National Forest, is the large Sespe Wilderness.
The Cuyama Valley is a valley along the Cuyama River in central California, in northern Santa Barbara, southern San Luis Obispo, southwestern Kern, and northwestern Ventura counties.
The Vaqueros Formation is a sedimentary geologic unit primarily of Upper Oligocene and Lower Miocene age, which is widespread on the California coast and coastal ranges in approximately the southern half of the state. It is predominantly a medium-grained sandstone unit, deposited in a shallow marine environment. Because of its high porosity and nearness to petroleum source rocks, in many places it is an oil-bearing unit, wherever it has been configured into structural or stratigraphic traps by folding and faulting. Being resistant to erosion, it forms dramatic outcrops in the coastal mountains. Its color ranges from grayish-green to light gray when freshly broken, and it weathers to a light brown or buff color.
The Patagonia Mountains are a 15-mile-long (24 km) mountain range within the Coronado National Forest, and in Santa Cruz County, Arizona.
Sedgwick Reserve is a 5,896-acre (2,386 ha) nature reserve in California. It is located in the San Rafael Mountains, 35 miles north of Santa Barbara near the town of Santa Ynez in Santa Barbara County, California.
The Juncal Formation is a prominent sedimentary geologic unit of Eocene age found in and north of the Santa Ynez Mountain range in southern and central Santa Barbara County and central Ventura County, California. An enormously thick series of sediments deposited over millions of years in environments ranging from nearshore to deep water, it makes up much of the crest of the Santa Ynez range north of Montecito, as well as portions of the San Rafael Mountains in the interior of the county. Its softer shales weather to saddles and swales, supporting a dense growth of brush, and its sandstones form prominent outcrops.
The Jalama Formation is a sedimentary rock formation widespread in southern Santa Barbara County and northern Ventura County, southern California. Of the Late Cretaceous epoch, the unit consists predominantly of clay shale with some beds of sandstone.
The Espada Formation is a sedimentary rock formation widespread in Santa Barbara County, California. Of late Jurassic to Cretaceous age, the unit consists primarily of shale with some interbedded thin layers of sandstone, conglomerate, and limestone.
The 1991 Sierra Madre earthquake occurred on June 28 at 07:43:55 local time with a moment magnitude of 5.6 and a maximum Mercalli intensity of VII. The thrust earthquake resulted in two deaths, around 100 injuries, and damage estimated at $33.5–40 million. The event occurred beneath the San Gabriel Mountains on the Clamshell–Sawpit Fault, which is a part of the Sierra Madre–Cucamonga Fault System. Instruments captured the event at a number of strong motion stations in Southern California.
