The Peace River is a major river located in northwestern Canada, primarily flowing through the province of Alberta. It is approximately 1,923 kilometers long and is a tributary of the Slave River, which eventually feeds into the Mackenzie River system. The river is known for its scenic landscapes and is an important waterway for transportation and recreation. The river's name originates from the historical peace treaty between the Cree and Sioux tribes. The Peace River basin is rich in natural resources, including oil and gas, and supports various wildlife habitats. It also plays a crucial role in local agriculture and irrigation.