Rimrock is the sheer rock wall at the upper edge of a plateau,

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 ...

, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone— basalt, gneiss, granite, sandstone, etc.—and is frequently layered. Many times it overlays a softer stone which erodes away underneath. American Indians in the West often used cavities found below rimrock to construct dwellings and granaries. {{Clear

Geographic placenames

The geologic formation has lent its name to many places in the western United States. Communities: * Rimrock, Arizona; Yavapai County, northeast of Camp Verde. * Rimrock, California; San Bernardino County, east of San Bernardino. *

Rimrock, Montana Rimrock is a populated place located in Yellowstone County, Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming t ...

; Yellowstone County, west of Billings. * Rimrock, Washington; Yakima County, near Rimrock Lake on the Tieton River west of Yakima. *

Rim Rock Colony, Montana Rim may refer to: *Rim (basketball), the hoop through which the ball must pass **Breakaway rim, a sprung basketball rim *Rim (coin), the raised edge which surrounds the coin design *Rim (crater), extending above the local surface *Rim (firearms), ...

; Toole County, north of

Helena Helena may refer to: People *Helena (given name), a given name (including a list of people and characters with the name) *Katri Helena (born 1945), Finnish singer *Helena, mother of Constantine I Places Greece * Helena (island) Guyana * ...

. Canyons: *

Rim Rock Canyon Rim may refer to: *Rim (basketball), the hoop through which the ball must pass **Breakaway rim, a sprung basketball rim *Rim (coin), the raised edge which surrounds the coin design * Rim (crater), extending above the local surface *Rim (firearms), ...

, Orange County, California *

Rimrock Valley Rimrock is the sheer rock wall at the upper edge of a plateau, canyon, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone—basalt, gneiss, granite, sandstone, etc ...

, Modoc County, California *

Rimrock Gulch Rimrock is the sheer rock wall at the upper edge of a plateau, canyon, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone—basalt, gneiss, granite, sandstone, etc ...

, Moffat County, Colorado *

Rimrock Canyon Rimrock is the sheer rock wall at the upper edge of a plateau, canyon, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone—basalt, gneiss, granite, sandstone, etc ...

Nye County, Nevada Nye County is a county in the U.S. state of Nevada. As of the 2020 census, the population was 51,591. Its county seat is Tonopah. At , Nye is Nevada's largest county by area and the third-largest county in the contiguous United States, behi ...

, Lincoln County, New Mexico *

Rimrock Draw Rimrock is the sheer rock wall at the upper edge of a plateau, canyon, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone—basalt, gneiss, granite, sandstone, etc ...

Washakie County, Wyoming Washakie County is a county in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 7,685. Its county seat is Worland. History Washakie County was created on February 21, 1911, as Hanover County with land detached ...

Rim Rock Draw Rim may refer to: *Rim (basketball), the hoop through which the ball must pass **Breakaway rim, a sprung basketball rim * Rim (coin), the raised edge which surrounds the coin design *Rim (crater), extending above the local surface * Rim (firearms) ...

, Johnson County, Wyoming Cliffs: * Rimrocks, Yellowstone County, Montana *Rimrock,

El Paso County, Texas El Paso County is the westernmost county in the U.S. state of Texas. As of the 2020 census, the population was 865,657, making it the ninth-most populous county in the state of Texas. Its seat is the city of El Paso, the sixth-most populous ...

The Rimrocks ''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in ...

, Kane County, Utah Lakes: *Rimrock Lake, Modoc County, California *Rimrock Lake, Carbon County, Montana *Rimrock Lake, Colfax County, New Mexico *Rimrock Lake, Marion County, Oregon * Rimrock Lake, Yakima County, Washington *Rimrock Lake, Teton County, Wyoming * Rimrock Lake, British Columbia, Canada Mountains: *Rimrock, Kootenai County, Idaho *

Rimrock Butte Rimrock is the sheer rock wall at the upper edge of a plateau, canyon, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone— basalt, gneiss, granite, sandstone ...

, Glacier County, Montana *

Rimrock Mountain Rimrock is the sheer rock wall at the upper edge of a plateau, canyon, or geological uplift. It may refer to either the rock formation or to the rock itself. Rimrock may be composed of almost any stone—basalt, gneiss, granite, sandstone, etc ...

, Hidalgo County, New Mexico Ridges: *Rim Rocks, Routt County, Colorado *Rim Rock, Grant County, New Mexico *Rim Rock, Elko County, Nevada *Rim Rock, Hood River County, Oregon High Schools: *Rimrock High School in

Bruneau, Idaho Bruneau is an unincorporated community in Owyhee County in the southwestern part of the U.S. state of Idaho. The mouth of the Bruneau River is to the northwest and Bruneau Sand Dunes State Park is to the east. As of 2014, Bruneau has a population ...

Geographic placenames

See also