Chatsworth is a suburban neighborhood in Los Angeles, California, in the San Fernando Valley.
The Santa Susana Pass, originally Simi Pass, is a low mountain pass in the Simi Hills of Southern California, connecting the San Fernando Valley and Los Angeles neighborhood of Chatsworth, to the city of Simi Valley and eponymous valley.
Rocky Peak, located in Rocky Peak Park, is the fourth-highest point in the Santa Susana Mountains, and overlooks the San Fernando Valley and Chatsworth, the Simi Hills, and the Simi Valley in Southern California. The peak, which is 2,715 feet (828 m) in elevation, sits on the Los Angeles County–Ventura County line.
Chatsworth Peak is a peak in the Simi Hills overlooking Chatsworth and the western San Fernando Valley, in Los Angeles, Southern California. It is southwest of Santa Susana Pass and north of the Chatsworth Reservoir.
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County and western Los Angeles County, of southern California, United States.
Santa Susana Pass State Historic Park is a California State Park of 670.68 acres (2.7141 km2) located in the city of Los Angeles, in Los Angeles County on the boundary between Ventura and Los Angeles counties, between the communities of Chatsworth and Simi Valley. Geologically, the park is located where the Simi Hills meet the Santa Susana Mountains. Here in the western part of the Transverse Ranges, the land is dominated by high, narrow ridges and deep canyons covered with an abundant variety of plant life. The park offers panoramic views of the rugged natural landscape as a striking contrast to the developed communities nearby. The park is also rich in archaeological, historical, and cultural significance.
Simi Valley is a synclinal valley in Southern California in the United States. It is an enclosed or hidden valley surrounded by mountains and hills. It is connected to the San Fernando Valley to the east by the Santa Susana Pass and the 118 freeway, and in the west the narrows of the Arroyo Simi and the Reagan Freeway connection to Moorpark. The relatively flat bottom of the valley contains soils formed from shales, sandstones, and conglomerates eroded from the surrounding hills of the Santa Susana Mountains to the north, which separate Simi Valley from the Santa Clara River Valley, and the Simi Hills.
The Chalk Hills are a north–south-running low 'mountain' range in the San Fernando Valley perpendicular to and adjoining the Santa Monica Mountains. They are located in the Woodland Hills District of the City of Los Angeles in Southern California. They run between DeSoto and Winnetka Avenues, from south of Ventura Boulevard north to near Victory Boulevard.
The Chico Formation is a geologic formation of the Campanian Age during the Cretaceous Period, found in California and southern Oregon.
The Modelo Formation is a Miocene geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.
The Towsley Formation is a geologic formation in the Santa Susana Mountains, in Los Angeles County, California.
The Topanga Canyon Formation is a Miocene epoch geologic formation in the Santa Monica Mountains, Simi Hills, Santa Ana Mountains and San Joaquin Hills, in Los Angeles County, Ventura County, and Orange County, southern California. It is primarily composed of hard sandstone with some inter-bedded siltstone.
The Santa Margarita Formation is a Neogene Period geologic formation in the San Joaquin Valley of central California.
The Llajas Formation is a non-marine to marine conglomerate geologic formation in Southern California.
The Martinez Formation is an Eocene Epoch geologic formation in California.
The Santa Susana Formation is a Paleogene period geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.
The Tejon Formation is a Paleogene period geologic formation in California.
The San Francisquito Formation is a geologic formation located in northern Los Angeles County, California.
Augustynolophus is an extinct genus of herbivorous saurolophine hadrosaur dinosaur which was discovered in the Moreno Formation in California, dating to the late Maastrichtian age, making it one of the last dinosaurs known from the fossil record before the Cretaceous–Paleogene extinction event.
The Agua Nueva Formation is a geologic formation in Mexico. It preserves fossils dating back to the upper part of the Cenomanian stage of the Cretaceous period. It consists "predominantly of alternating fossiliferous, organic matter-rich, laminated, dark gray limestone and non-laminated, organic matter-poor limestone in decimeter-thick beds with occasional centimetric beds of brown shale that show no apparent internal structures." The formation is noted for its qualities as a Konservat-Lagerstätte, with notable finds including the plesiosaur Mauriciosaurus and shark Aquilolamna.
