The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile.
Mohave County is in the northwestern corner of the U.S. state of Arizona. As of the 2010 census, its population was 200,186. The county seat is Kingman, and the largest city is Lake Havasu City. It is the fifth largest county in the United States.
The Colorado Plateau, also known as the Colorado Plateau Province, is a physiographic and desert region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. This province 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 Escalante River is a tributary of the Colorado River. It is formed by the confluence of Upper Valley and Birch Creeks near the town of Escalante in south-central Utah, and from there flows southeast for approximately 90 miles (140 km) before joining Lake Powell. Its watershed includes the high forested slopes of the Aquarius Plateau, the east slope of the Kaiparowits Plateau and the high desert north of Lake Powell. It was the last river of its size to be discovered in the 48 contiguous U.S. states. The average discharge is approximately 146 cfs.
Northern Arizona is an unofficial, colloquially-defined region of the U.S. state of Arizona. Generally consisting of Apache, Coconino, Mohave, and Navajo counties, the region is geographically dominated by the Colorado Plateau, the southern border of which in Arizona is called the Mogollon Rim.
The Hualapai is a federally recognized Native American tribe in Arizona with about 2300 enrolled members. Approximately 1353 enrolled members reside on the Hualapai Reservation, which spans over three counties in Northern Arizona.
The Arizona Strip is the part of Arizona lying north of the Colorado River. The difficulty of crossing the Grand Canyon causes this region to have more physical and cultural connections with southern Utah and Nevada than with the rest of Arizona. The largest settlements in the Strip are Colorado City, Fredonia, and Beaver Dam, with its surrounding communities of Scenic, Littlefield and Desert Springs.
Aubrey Cliffs are a series of cliff escarpments located in Coconino County, in northwestern Arizona.
The Sacramento Wash is a major drainage of northwest Arizona in Mohave County. The wash is east of the Black Canyon of the Colorado and drains into the south-flowing Colorado River 45 mi south of Lake Mohave, and 90 mi south of Hoover Dam at Lake Mead. The wash outfall is in the center-south of the Havasu-Mohave Lakes Watershed. An equivalent wash drains to the west of the Colorado River and the Black Canyon, draining southeast Nevada and a small part of California, the Piute Wash of the Piute Valley. The Piute Wash outfall is upstream of the Sacramento's outfall by about 15 miles.
Bridge Canyon Dam, also called Hualapai Dam, was a proposed dam in the lower Grand Canyon of the Colorado River, in northern Arizona in the United States. It would have been located near Bridge Canyon Rapids in an extremely rugged and isolated portion of the canyon, 235 miles (378 km) downstream of Lees Ferry and at the uppermost end of Lake Mead.
The Long Valley of Utah is a 13-mile (21 km) long valley located in western Kane County. The valley is located in source water regions of waters flowing north, south, and southwest, in the west of the High Plateaus section of the Colorado Plateau; the High Plateaus section also extends into northern Arizona, the region north of the Grand Canyon.
The Colorado River is a major river of the western United States and northwest Mexico in North America. Its headwaters are in the Rocky Mountains where La Poudre Pass Lake is its source. Located in north central Colorado it flows southwest through the Colorado Plateau country of western Colorado, southeastern Utah and northwestern Arizona where it flows through the Grand Canyon. It turns south near Las Vegas, Nevada, forming the Arizona–Nevada border in Lake Mead and the Arizona–California border a few miles below Davis Dam between Laughlin, Nevada and Needles, California before entering Mexico in the Colorado Desert. Most of its waters are diverted into the Imperial Valley of Southern California. In Mexico its course forms the boundary between Sonora and Baja California before entering the Gulf of California. This article describes most of the major features along the river.
Aubrey Valley is a 35-mile (56 km) long valley located in southwest Coconino County, Arizona with the northwest border of Yavapai County. The valley is located at the southwest border of the Aubrey Cliffs; to the west and southwest, the Yampai Divide and the Seventyfour Plains form flatlands between four bordering mountain ranges at the northwest terminus of the Arizona transition zone.
The Toroweap Fault of northwest Arizona and southwest Utah is part of a fault system of the west Grand Canyon region, Arizona, USA; also the west perimeter regions of the Coconino and Colorado Plateaus. The Hurricane Fault originates at the Toroweap Fault, in the region of the Colorado River, and strikes as the westerly depression of the Toroweap Fault. The Toroweap strikes northerly from the Colorado at the east of Toroweap Valley, and enters south Utah; from the Colorado River, the Hurricane Fault strikes north-northwest along the west flank of the small, regional Uinkaret Mountains, the west border of Toroweap Valley. The Hurricane Fault, and the Hurricane Cliffs strike into southwest Utah as part of the west, and southwest perimeter of the Colorado Plateau. The Hurricane Cliffs are made of Kaibab Limestone, an erosion resistant, cliff-forming rock unit.
Isis Temple, in the Grand Canyon, Arizona, USA, is a prominence below the North Rim, and adjacent to Granite Gorge. The prominence lies north of the north bank of the west-flowing Colorado River and is just north of Granite Gorge. The Trinity Creek and canyon flow due-south at its west border; its north, and northeast border/flank is formed by Phantom Creek and canyon, a west tributary of Bright Angel Creek; the creeks intersect about 3 mi southeast, and 1 mi north of Granite Gorge. The Isis Temple prominence, is only ~202 ft lower than Grand Canyon Village, the main public center on Grand Canyon’s South Rim.
The Pennsylvanian to Lower Permian,, Supai Group, is a slope-forming section of red bed deposits found at the southwest-to-south Colorado Plateau. Cliff-forming interbeds (sandstone) are noticeable throughout the group, as well as the largest cliff-former the topmest member Esplanade Sandstone. The Supai Group is especially exposed throughout the Grand Canyon in northwest Arizona, as well as local regions of southwest Utah. It outcrops southeastwards in Arizona at Chino Point, Sycamore Canyon, and famously at Sedona as parts of Oak Creek Canyon. In the Sedona region, it is overlain by the Hermit Formation, and the colorful Schnebly Hill Formation.
The Peacock Mountains are a small, 26-mi (42 km) long mountain range in northwest Arizona, USA. The range is a narrow sub-range, and an extension north, at the northeast of the Hualapai Mountains massif, which lies to the southwest. The range is defined by the Hualapai Valley to the northwest, and north and south-flowing washes on its east border, associated with faults and cliffs; the Cottonwood Cliffs are due east, and are connected to the Aquarius Cliffs southward at the west perimeter of the Aquarius Mountains; the cliffs are a result of the Aquarius Fault, which is an extension southward from the Grand Wash Cliffs and Grand Wash Fault which crosses the Colorado River at Lake Mead, and the west perimeter of the Grand Canyon/Colorado Plateau.
The Grand Wash Cliffs extend south-southeast from the Grand Canyon-Parashant National Monument in northwest Arizona west of the Shivwits Plateau south through the Grand Cliffs Wilderness and into the Lake Mead Recreation Area. The Grand Wash Cliffs cross the Grand Canyon where the Colorado River enters Lake Mead. To the south of the Grand Canyon the Grand Wash Cliffs continue past the east side of Grapevine Mesa and then southeast above and east of the Hualapai Valley forming the southwest margin of the Music Mountains.
Diamond Peak is a 3,512-foot-elevation summit located in the western end of the Grand Canyon, on the Hualapai Indian Reservation in Mohave County of northwestern Arizona, United States. This double summit landmark is situated at the mouth of Peach Springs Canyon, where Diamond Creek meets the Colorado River. This peak is an erosional remnant composed of Cambrian Muav Limestone and Mississippian Redwall Limestone. Topographic relief is significant as Diamond Peak towers 2,200 feet above the Colorado River in one-half mile. According to the Köppen climate classification system, Diamond Peak is located in a desert climate zone.
Tuna Canyon is a short, high-angle, descending, narrow canyon in western Grand Canyon, below the North Rim. It lies across Granite Gorge in a region of four canyons, and a fifth smaller canyon, as the Colorado River courses westward around the Point Sublime, , ridgelines. The high-angle of Tuna Canyon, Tuna Creek, creates the Tuna Creek Rapids (Rapid) at the outfall. Tuna Canyon is a short canyon, nestled between the ridges, but just east is the very long drainage of Crystal Creek (Arizona), which drains from the Kaibab Plateau. The Crystal Rapid is adjacent upstream from the Tuna Creek Rapids.
