Peace Arch Park is a park straddling the International Boundary between the United States and Canada at the extreme western end of the main contiguous section of the two countries' land border, where it reaches Semiahmoo Bay of Puget Sound on the continent's Pacific Coast. There is a detached section of the land border a few kilometers (miles) west on the Point Roberts peninsula. The park is at the Peace Arch Border Crossing (also known as the Douglas Border Crossing), where Highway 99 in British Columbia and Interstate 5 in Washington State meet. This international park consists of the Peace Arch State Park on the United States side of the border and the Peace Arch Provincial Park on the Canadian side of the border. Nearest city-Blaine, Washington/Surrey, British Columbia. Established-November 7, 1939. Governing body-Canada: BC Parks. U.S.: Washington State Parks.