The Peace River Block is an 3500000acres area of land in northeastern British Columbia, in the Peace River Country. In exchange for building a rail line across Canada to British Columbia, the Canadian Pacific Railway was given the Railway Belt, 20miles of land on each side of the railway. To compensate the CPR for alienated or non-arable land in the 40adj=midNaNadj=mid strip, the province allowed the Government of Canada to take control of 3,500,000 acres within B.C., northeast of the Rocky Mountains. This arrangement passed the provincial Legislature on December 19, 1883, and passed the Parliament of Canada on March 21, 1884, as the Settlement Act. All the land northeast of the Rocky Mountains became a provincial reserve pending the government of Canada's decision on what land to select, which prevented homesteading and land claims. After several surveys of the land the government took possession in 1907. The land the government chose was an approximately square-shaped block of land 72.4miles north-south and 75.7miles east-west. The south boundary begins at the intersection of the Alberta-British Columbia border and the Twentieth Baseline of the Dominion Land Survey, and the north boundary begins at the Twenty-third Baseline; however, both boundaries are run at right angles to the Alberta-British Columbia Border without accounting for meridian convergence and thus deviate south of each baseline. Land within the block was initially surveyed using the 3rd and 4th Systems of the Dominion Land Survey; however, much of the south and west parts of the block were eventually surveyed into district lots similar to other parts of British Columbia.
The Dominion government opened the southeastern corner of the block in 1912 for homesteading. The Dominion government administered the land from two offices: the first, Peace River Land Agency, in Peace River, Alberta, and the second, Grande Prairie Land Agency, in Grande Prairie, Alberta. While the land was in Dominion control the province still provided roads, schools, and other normal provincial government services. Conflicts between the federal and provincial governments occurred over the jurisdiction over land, water, and mineral rights. An agreement was reached between the two governments on February 20, 1930, which returned the block and the Railway Belt to the provincial government at the same time that public land and mineral rights were transferred to the Prairie Provinces. The agreement was implemented by the Natural Resources Acts and the Constitution Act, 1930.