It should be noted that, although both Great Britain and the United States claimed the entire country of Oregon, the two parties largely expected to share the territory; Both could reasonably expect to acquire the entire Oregon Country. To the east of the continental chasm, the United States and Great Britain had agreed on a border west of the Great Lakes at the 49th parallel. Almost from the beginning of the Oregon discussions, the British expected that this boundary would continue west of the Columbia River and then follow that river to the ocean. So they were prepared to leave everything in the United States south of the 49th parallel, then south and east of the Columbia River. But they wanted access to the river itself, which was ultimately the main thoroughfare of the journey in HBC`s stocks, and they wanted control of Puget Sound, which they rightly considered to be a superior port. At the same time, Americans generally did not expect to win anything north of the 49th parallel, but they coveted Puget Sound and access to Juan de Fuca Street. Remember that in the 1820s and 1830s, the United States did not have a good port on the Pacific coast. San Diego and San Francisco were first Spanish ports, then Mexican ports. The Oregon coast did not offer a large port for ships, and the bar at the mouth of Columbia was infamous for disrupting transportation between the ocean and the river.
Until the end of the war with Mexico, 1846-48, the United States considered Puget Sound the best place to acquire a protected deep-water port on the Pacific coast. The contract defined the border in the Strait of Juan de Fuca by the main channel. The “Great Canal” was not defined, which in 1859 led to further disputes over the islands of San Juan. In 1846, Britain and the United States signed the Oregon Treaty, which extended the international border between the United States and what would become Canada along the 49th parallel with the Strait of Georgia and then the Strait of Juan de Fuca. This agreement terminated “competition” for the region by dividing it between the British and the Americans. Subsequently, issues such as Indian and agricultural policy on both sides of the border would be determined by different government systems.