The Mogollon Rim northeast of Payson, Arizona

The Mogollon Rim ( or or ) is a

topographical Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary sci ...

and geological feature cutting across the northern half of the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

. It extends approximately , starting in northern

Yavapai County Yavapai County is near the center of the U.S. state of Arizona. As of the 2020 census, its population was 236,209, making it the fourth-most populous county in Arizona. The county seat is Prescott. Yavapai County comprises the Prescott, AZ M ...

and running eastward, ending near the border with

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...

.The Mogollon Rim is not to be confused with the

Mogollon Mountains The Mogollon Mountains or Mogollon Range ( or ) are a mountain range in Grant County and Catron County of southwestern New Mexico, in the Southwestern United States. They are primarily protected within the Gila National Forest. Geography The Mo ...

located somewhat east of the eastern end of the Rim. The official estimate of the eastern end is near

Show Low Show Low is a city in Navajo County, Arizona. It lies on the Mogollon Rim in east central Arizona, at an elevation of 6,345 feet (1,934 m). The city was established in 1870 and incorporated in 1953. According to the 2010 census, the population ...

, although some sources extend it farther east. See It forms the southern edge of the Colorado Plateau in Arizona.

Description

The Rim is an

escarpment An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. The terms ''scarp'' and ''scarp face'' are often used interchangeably with ''escar ...

defining the southwestern edge of the Colorado Plateau. Its central and most spectacular portions are characterized by high cliffs of

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

and

sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) ...

, namely the

Kaibab Limestone The Kaibab Limestone is a resistant cliff-former, cliff-forming, Permian geologic formation that crops out across the U.S. states of northern Arizona, southern Utah, east central Nevada and southeast California. It is also known as the Kaibab Fo ...

and

Coconino Sandstone Coconino Sandstone is a geologic formation named after its exposure in Coconino County, Arizona. This formation spreads across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. ...

cliffs. The escarpment was created by

erosion Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distin ...

and faulting, cutting dramatic

canyon A canyon (from ; archaic British English spelling: ''cañon''), or gorge, is a deep cleft between escarpments or cliffs resulting from weathering and the erosion, erosive activity of a river over geologic time scales. Rivers have a natural tenden ...

s into it, including

Fossil Creek Fossil Creek ( yuf-x-yav, Hakhavsuwa or ) is a perennial stream accessed by forest roads near the community of Camp Verde in the U.S. state of Arizona. Primary access is from Forest Road 708 off Arizona State Route 260 east of Camp Verde. A tr ...

Canyon and Pine Canyon. The name Mogollon comes from Don

Juan Ignacio Flores Mogollón Juan Ignacio Flores Mogollon was a Spanish military officer who served as governor of Santa Fe de Nuevo Mexico between 1712 and 1715, replacing Jose Chacón Medina Salazar y Villaseñor. Life and career Mogollon joined the Spanish Army in his yout ...

, the Spanish

Governor A governor is an administrative leader and head of a polity or political region, ranking under the head of state and in some cases, such as governors-general, as the head of state's official representative. Depending on the type of political ...

from 1712 to 1715. Much of the land south of the Mogollon Rim lies above

sea level Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical datuma standardised g ...

, with the escarpment rising to about . Extensive

Ponderosa pine ''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the ...

forests are found both on the slopes of the Rim and on the

plateau In geology and physical geography, a plateau (; ; ), also called a high plain or a tableland, is an area of a highland consisting of flat terrain that is raised sharply above the surrounding area on at least one side. Often one or more sides ha ...

north of it. The Mogollon Rim is a major

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