The Peace River Country (or Peace Country) is an aspen parkland region centring on the Peace River in Canada. It extends from northwestern Alberta to the Rocky Mountains in northeastern British Columbia, where a certain portion of the region is also referred to as the Peace River Block.
The Peace River Country includes the incorporated communities of Fort St. John, Dawson Creek, Tumbler Ridge and Chetwynd in British Columbia. Major communities in the Alberta portion of the Peace Country include Grande Prairie, Peace River, High Level and Fairview. It has no fixed boundaries but covers some 260,000 to 390,000 km² (100,000 to 150,000 square miles).
In British Columbia, the area extends from Monkman Provincial Park and Tumbler Ridge in the south, to Hudson's Hope and the Williston Lake in the west, to Fort St. John and Charlie Lake in the north. The term is used also in a broader sense to mean the whole of the Northeastern Interior past the Rockies, including Fort Nelson and other parts of the Liard drainage, and before W.A.C. Bennett Dam included the upper Peace River through its canyon between Finlay Forks and Hudson's Hope. In Alberta, the region stretches from Grande Prairie and Valleyview in the south, to High Prairie and Lesser Slave Lake in the east, to Fort Vermilion, High Level and Rainbow Lake in the north.
The first European to explore the area was Sir Alexander MacKenzie, who travelled down the Peace in 1789 and eventually reached the Mackenzie River and the Arctic Ocean. In 1793 he used the same route to reach the Pacific Ocean. Subsequently, the region saw a surge in the fur trade, with forts  built along the river from Fort Vermilion to Hudson's Hope.
At the beginning of the 20th century, the farming potential of the area was advertised by the federal government, but settlement was scarce because of difficult travel conditions through the muskeg. With the arrival of the railway in 1916, and following the opening of land for homesteaders in 1910, farming and ranching took off in the fertile Peace Country. The settlement of the British Columbia portion of the agricultural area, known as the Peace River Block, originated as a railway grant which wound up for a time under Dominion jurisdiction and managed by offices in Alberta until returned to British Columbia following ongoing jurisdictional conflicts.
Forestry plays a large role in the Peace Country economy. Pulp mills were built in Chetwynd, Peace River and Grande Prairie beginning in the 1970s.
The economy received another boost when oil and gas were found in the region. In 1952, gas was struck in the Fort St. John No. 1 well, and the first refinery was built in 1957 at Taylor. The massive Elmworth natural gas field in northwestern Alberta was discovered in the mid-70s along with other major gas fields in British Columbia and Alberta. Both Fort St. John and Grande Prairie experienced rapid economic and population growth as a result.
Peace Country contains Canada's northernmost lands suitable for agriculture. Crops raised include canola, oats, peas and barley. Some cattle ranching and beekeeping is also done in the area. In 2006, the region accounted for 14.4% of Canada's total bison-producing herd.
Peace Country is crossed by the southern leg of the Alaska Highway, the western extremity of Alberta Highway 43 and the southern portion of the Mackenzie Highway. Other important transportation routes include the northern part of Alberta Highway 2, Alberta Highway 35, British Columbia Highway 29, British Columbia Highway 97, and Alberta Highway 49.