The Colorado Plateau is a physiographic and desert region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. This plateau covers an area of 336,700 km2 (130,000 mi2) within western Colorado, northwestern New Mexico, southern and eastern Utah, northern Arizona, and a tiny fraction in the extreme southeast of Nevada. About 90% of the area is drained by the Colorado River and its main tributaries: the Green, San Juan, and Little Colorado. Most of the remainder of the plateau is drained by the Rio Grande and its tributaries.
The Chocolate Mountains of California are located in Imperial and Riverside counties in the Colorado Desert of Southern California. The mountains stretch more than 60 miles (100 km) in a northwest to southeast direction, and are located east of the Salton Sea and south and west of the Chuckwalla Mountains and the Colorado River. To the northwest lie the Orocopia Mountains.
The Sevier orogeny was a mountain-building event that affected western North America from northern Canada to the north to Mexico to the south.
The Big Maria Mountains are located in the southeastern part of the U.S. state of California, near the Colorado River and Arizona. The range lies between Blythe and Vidal, and west of U.S. Route 95 in California and east of Midland. The mountains are home to the Eagle Nest Mine and reach an elevation of 1,030 m (3,380 ft). A power line that runs from Parker Dam to Yuma, Arizona runs through the range. A smaller range, the Little Maria Mountains, lie to the west of the Big Marias.
The Palen Mountains are located in the southern Mojave Desert – northern Colorado Desert in eastern Riverside County, California, US. The range lies southeast of the Coxcomb Mountains, and northeast of the Chuckwalla Mountains near Interstate 10. The mountains lie in a southwest-northeasterly direction and are approximately 15 miles long and nine miles wide at their widest point.
The Turtle Mountains, are located in northeastern San Bernardino County, in the southeastern part of California. The colorful Turtle Mountains vary from deep reds, browns, tans and grays, to black. The area has numerous springs and seeps. The Turtle Mountains are also a National Natural Landmark, with two mountain sections of entirely different composition.
The Whipple Mountains are located in eastern San Bernardino County, California. They are directly west of the Colorado River, Parker Dam, and Lake Havasu; south of Needles, California; north of Parker, Arizona and Vidal, California; and northeast of Vidal Junction, California.
The McCoy Mountains are located in southeastern California in the United States. The southeast terminus of the range lies adjacent the western edge of the Parker Valley in a southern stretch of the Lower Colorado River Valley corridor.
The Lewis Overthrust is a geologic thrust fault structure of the Rocky Mountains found within the bordering national parks of Glacier in Montana, United States and Waterton Lakes in Alberta, Canada. The structure was created due to the collision of tectonic plates about 59-75 million years ago that drove a several mile thick wedge of Precambrian rock 50 mi (80 km) eastwards, causing it to overlie softer Cretaceous age rock that is 1300 to 1400 million years younger.
Old Woman Mountains Wilderness is a wilderness area in the Old Woman Mountains of the eastern Mojave Desert. It is located south of Essex in San Bernardino County, California.
The Kiavah Wilderness is a federally designated wilderness area located in the Mojave Desert, Scodie Mountains, and southern Sierra Nevada in Kern County, California, United States. California State Route 178 connects the town of Lake Isabella to State Highway 14 in the east, crossing Walker Pass at the north boundary of the wilderness.
The Sacatar Trail Wilderness is a federally designated wilderness area located 20 miles (32 km) northwest of Ridgecrest, California USA. It was created in 1994 with the passage of the California Desert Protection Act - Public Law 103-433 - and is managed by the Bureau of Land Management (BLM). The wilderness is 51,900 acres (210 km2) in size and protects portions of the southern Sierra Nevada Mountain Range.
The Maria fold and thrust belt (MFTB) is a portion of the North American Cordillera orogen in which geological structures accommodate roughly north–south to northwest-southeast vergent Mesozoic age crustal shortening. This lies in contrast to the remainder of the Cordillera, in which shortening is predominantly east–west. Structures associated with the Maria Fold and Thrust Belt are exposed in a series of mountain ranges in southeastern California and western Arizona. Many of the deep structures of the MFTB have been exposed due to east–west to northeast-southwest Cenozoic age extension and unroofing.
The Arica Mountains are a small mountain range in northern Riverside County, California. The range lies along the south edge of Rice Valley 6.2 miles (10.0 km) southwest of the old Rice townsite on California State Route 62. They lie 6 miles (9.7 km) north of the Little Maria Mountains and 9 miles (14 km) southwest of the Turtle Mountains. The Granite Mountains lie about 8 miles to the west. They are in the Colorado Desert, in the Lower Colorado River Valley region. They are north the Palen Mountains and Big Maria Mountains; and northwest of Blythe, California.
The Riverside Mountains are a mountain range in Riverside County, California. The town of Vidal, California is located in the West Riverside Mountains.
The Harcuvar Mountains are a narrow mountain range in western-central Arizona, United States. The range lies just east of the north–south Colorado River, and south of the east–west, west-flowing Bill Williams River, from Alamo Lake.
The Rawhide Mountains are a mountain range of western Arizona, in the southwest of Mohave County. It is part of a block of mountain ranges on the north of an insular region called the Maria fold and thrust belt, containing mountain ranges, valleys, and plains. The Rawhide Mountains border the much smaller Artillery Mountains southeast, bordering on Alamo Lake State Park and the south-flowing Big Sandy River.
The Carpathian Flysch Belt is an arcuate tectonic zone included in the megastructural elevation of the Carpathians on the external periphery of the mountain chain. Geomorphologically it is a portion of the Outer Carpathians. Geologically it is a thin-skinned thrust belt or accretionary wedge, formed by rootless nappes consisting of so-called flysch – alternating marine deposits of claystones, shales and sandstones which were detached from their substratum and moved tens of kilometers to the north (generally). The Flysch Belt is together with Neogene volcanic complexes the only extant tectonic zone along the whole Carpathian arc.
The geology of North America is a subject of regional geology and covers the North American continent, the third-largest in the world. Geologic units and processes are investigated on a large scale to reach a synthesized picture of the geological development of the continent.
The Rice Valley is a valley of the southeastern Mojave Desert, located within Riverside County, California.
