Powder River Country

The Powder River in Johnson County, Wyoming

The Powder River Country is the

Powder River Basin The Powder River Basin is a geologic structural basin in southeast Montana and northeast Wyoming, about east to west and north to south, known for its extensive coal reserves. The former hunting grounds of the Oglala Lakota, the area is very s ...

area of the Great Plains in northeastern

Wyoming Wyoming () is a state in the Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the s ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

. The area is loosely defined as that between the

Bighorn Mountains The Bighorn Mountains ( cro, Basawaxaawúua, lit=our mountains or cro, Iisaxpúatahchee Isawaxaawúua, label=none, lit=bighorn sheep's mountains) are a mountain range in northern Wyoming and southern Montana in the United States, forming a ...

and the

Black Hills The Black Hills ( lkt, Ȟe Sápa; chy, Moʼȯhta-voʼhonáaeva; hid, awaxaawi shiibisha) is an isolated mountain range rising from the Great Plains of North America in western South Dakota and extending into Wyoming, United States. Black ...

, in the upper drainage areas of the

Powder A powder is a dry, bulk solid composed of many very fine particles that may flow freely when shaken or tilted. Powders are a special sub-class of granular materials, although the terms ''powder'' and '' granular'' are sometimes used to distin ...

Tongue The tongue is a muscular organ in the mouth of a typical tetrapod. It manipulates food for mastication and swallowing as part of the digestive process, and is the primary organ of taste. The tongue's upper surface (dorsum) is covered by taste ...

, and Little Bighorn rivers. During the late 1860s, the area was the scene of

Red Cloud's War Red Cloud's War (also referred to as the Bozeman War or the Powder River War) was an armed conflict between an alliance of the Lakota, Northern Cheyenne, and Northern Arapaho peoples against the United States that took place in the Wyoming and Mo ...

, fought between the Lakota peoples and the United States. The Lakota victory in the war resulted in the continuation of their control of the area for the next decade. After control of the area fell to the U.S. government in the 1870s following the end of the Great Sioux War of 1876–77, the area was opened to white settlement for homesteading. In 1892, the area was the scene of the

Johnson County War The Johnson County War, also known as the War on Powder River and the Wyoming Range War, was a range conflict that took place in Johnson County, Wyoming from 1889 to 1893. The conflict began when cattle companies started ruthlessly persecuting ...

. In the early 20th century, the discovery of

oil An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) & lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated ...

in the area led to the development of the area's oil fields.

Coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when ...

is also mined. {{coord, 44, 30, N, 105, 30, W, format=dms, display=title, type:adm1st_region:US-WY Regions of Wyoming Great Sioux War of 1876 Red Cloud's War