&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160; Through Haro Strait, favored by the US &_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160; Through Rosario Strait, favored by Britain &_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160;&_160; Through San Juan Channel, compromise proposal The curved lines are as shown on maps of the time. The modern boundary is made of straight line segments and roughly follows the blue line.
The Pig War was a confrontation in 1859 between American and British authorities over the boundary between the United States and British North America. The specific area in dispute was the San Juan Islands, which lie between Vancouver Island and the North American mainland. The Pig War, so called because it was triggered by the shooting of a pig, is also called the Pig Episode, the San Juan Boundary Dispute or the Northwestern Boundary Dispute. The pig was the only "casualty" of the war, making the conflict essentially bloodless.
The Oregon Treaty of June 15, 1846 resolved the Oregon boundary dispute by dividing the Oregon Country/Columbia District between the United States and Britain "along the forty-ninth parallel of north latitude to the middle of the channel which separates the continent from Vancouver Island, and thence southerly through the middle of the said channel, and of [Juan de] Fuca's Straits, to the Pacific Ocean.[1]"
However, there are actually two straits which could be called the middle of the channel Haro Strait, along the west side of the San Juan Islands; and Rosario Strait, along the east side.[2]
