| Lake Mathews Formation Stratigraphic range: Neogene | |
|---|---|
| Type | Formation |
| Location | |
| Region | Temescal Mountains, Riverside County, California |
| Country | United States |
The Lake Mathews Formation is a geologic formation in Riverside County, California.
It is located in the Lake Mathews reservoir area, in the Temescal Mountains.
The sedimentary formation preserves fossils dating back to the Neogene period.
The Merced Formation is a geologic formation in California, and also in Oregon and Washington state. It is named for Lake Merced, a natural lake on the western San Francisco coastline.
The Paso Robles Formation is a geologic formation in California, United States. It preserves fossils dating back to the Neogene period.
The Pismo Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Puente Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Branch Canyon Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Etchegoin Formation is a Pliocene epoch geologic formation in the lower half of the San Joaquin Valley in central California.
The Dove Spring Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Diablo Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Copper Canyon Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.
The Capistrano Formation is a geologic formation in coastal southern Orange County, California.
The Caliente Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Modelo Formation is a Miocene geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.
The Mehrten Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Tulare Formation is a Pliocene to Holocene epoch geologic formation in the central and southern San Joaquin Valley of central 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 Siesta Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The Santa Margarita Formation is a Neogene Period geologic formation in the San Joaquin Valley of central California.
The San Mateo Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period.
The San Joaquin Formation is a Pliocene epoch geologic formation in the lower half of the San Joaquin Valley in central California.
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