USA HISTORY

Detailed explanation-1: -The treaty established the 49th parallel from the Rocky Mountains to the Strait of Georgia as the boundary between the United States and British Canada.

Detailed explanation-2: -The forty-ninth parallel is the line of latitude that forms the boundary between Canada and the US from Lake of the Woods to the Strait of Georgia. The forty-ninth parallel is the line of latitude that forms the boundary between Canada and the US from Lake of the Woods to the Strait of Georgia.

Detailed explanation-3: -The agreement extended the border along the 49th parallel to the Pacific Ocean but kept Vancouver Island within British North America. It was also agreed that British subjects living in the Oregon Territory south of the 49th parallel would retain navigation rights on the Columbia River.

Detailed explanation-4: -Britain and the United States agree on the 49th parallel as the main Pacific Northwest boundary in the Treaty of Oregon on June 15, 1846.