The Powder River Country is depicted in red on a map of the western United States

The Powder River Country refers to an area of the Great Plains in northeastern Wyoming in the United States. The Great Plains are the broad expanse of Prairie and Steppe which lie east of the Rocky Mountains in the United States and Canada The State of Wyoming ( is a sparsely populated state in the western region of the United States. The United States of America —commonly referred to as the The area is loosely defined between the Bighorn Mountains and the Black Hills, in the upper drainage areas of the Powder, Tongue, and Little Bighorn rivers. The Big Horn Mountains are a Mountain range in northern Wyoming and southern Montana in the United States, forming a northwest-trending The Black Hills ( Pahá Sápa in Lakota, Moˀȯhta-voˀhonáaeva in Cheyenne) are a small isolated Mountain range rising from the The Powder River is a tributary of the Yellowstone River, approximately long in the southeastern Montana and northeastern Wyoming in the United The Tongue River is a Tributary of the Yellowstone, approximately 265 mi (426 km long in the U The Little Bighorn River is a tributary of the Bighorn River in the United States in the states of Wyoming and Montana.

During the late 1860s, the area was the scene of Red Cloud's War between the Sioux and the United States. Events and trends Technology The First Transcontinental Railroad in the USA was completed in 1869 Red Cloud's War (also referred to as the Bozeman War or the Powder River War) was an armed conflict between the Lakota and the United States in the Sioux (pronounced SUE are a Native American and First Nations people The Sioux victory in the war resulted in the preservation of their control of the area for the next decade.

After control fell to the U. S. government in 1870s following the end of the Black Hills War, the area was opened to white settlement, one of the last such areas opened for homesteading in the continental United States. Events and Trends Technology The invention of the prototype telephone by Alexander G The Black Hills War (also known as the Great Sioux War or Little Big Horn Campaign) was a series of conflicts between the Lakota ( Sioux) Broadly defined homesteading is a lifestyle of simple agrarian Self-sufficiency. In 1892, the area was the scene of the Johnson County War between land barons and European immigrants. Year 1892 ( MDCCCXCII) was a Leap year starting on Friday (link will display the full calendar of the Gregorian Calendar (or a Leap year The Johnson County War also known as the War on Powder River or Wyoming Civil War, was a Range war which took place in Johnson County Wyoming The conflict was depicted in the 1981 movie Heaven's Gate. Year 1981 ( MCMLXXXI) was a Common year starting on Thursday (link displays the 1981 Heaven's Gate is a 1980 Western movie depicting the Johnson County War, a dispute between land barons and European immigrants in Wyoming

In the early 20th century, the discovery of petroleum in the area led to the development of the area's oil fields. The twentieth century of the Common Era began on Petroleum ( L petroleum, from Greek πετρέλαιον, lit

See also

• Powder River Basin