Title: Oregon pioneer history
Content:  At the beginning of the pioneer period the Oregon Country was the homeland of numerous tribes of Native Americans. Regardless, portions of the area were claimed by the United States, Great Britain, Spain, and Russia. From 1818 to the mid-19th century, several treaties were signed that would set the current political boundaries. In 1818, the United States and Great Britain signed the Treaty of 1818 that led to what has been termed a "joint occupation" of the Oregon Country. Also in 1818 the U.S. resolved its claims with Spain regarding the western Louisiana Purchase lands, limiting Spanish claims to colonial Alta California south of the 42nd degree 
Title: Oregon Country
Content:  In the nineteenth century, the Oregon Country was a disputed region of the Pacific Northwest of North America. The region was occupied by British and French Canadian fur traders from before 1810, and American settlers from the mid-1830s, with its coastal areas north from the Columbia River frequented by ships from all nations engaged in the maritime fur trade, most of these from the 1790s through 1810s being Boston-based. The Oregon Treaty of 1846 ended disputed joint occupancy pursuant to the Treaty of 1818 and established the British-American boundary at the 49th parallel (except Vancouver Island). Oregon was a distinctly American term for the region. The British used the term Columbia District 
Title: Oregon
Content:  Oregon is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42° north parallel delineates the southern boundary with California and Nevada. Oregon has been home to many indigenous nations for thousands of years. The first European traders, explorers, and settlers began exploring what is now Oregon's Pacific coast in the early-mid 16th century. As early as 1565, the Spanish began sending vessels northeast from the Philippines, riding the Kuroshio Current in a sweeping circular route across the northern part of the Pacific. In 1592, Juan de Fuca undertook detailed mapping and studies of 
Title: Oregon Country
Content:  The Oregon Country consisted of the land north of 42°N latitude, south of 54°40′N latitude, and west of the Rocky Mountains—with the eastern border generally running on or close to the Continental Divide—westwards to the Pacific Ocean. The area now forms part of the present day Canadian province of British Columbia and all of the U.S. states of Oregon, Washington, and Idaho, as well as parts of Montana and Wyoming. The British presence in the region was generally administered by the Hudson's Bay Company, whose Columbia Department comprised most of the Oregon Country and extended considerably north into New Caledonia and beyond 54°40′N, with operations reaching tributaries of the Yukon River.
Title: History of Oregon
Content:  Great Britain and the U.S. both claimed ownership of Oregon, ignoring any claims by indigenous peoples to their territories. The dispute, friendly at first, escalated into the threat of war before it was resolved amicably in 1846 by splitting the region 50-50. Following the Anglo American Treaty of 1818, the region was "jointly occupied" by the U.S. and Britain. The Americans referred to the region as Oregon Country, while the British knew it as the Hudson's Bay Company's Columbia District, which was administered from Fort Vancouver near present-day Vancouver, Washington. During the 1820s and early 1830s the American West was explored by private trappers who formed fur trading companies originating from St. Louis. One of these privateer trappers and explorers was Jedediah Smith who led expeditions into the American West. On October 29, 1830 Smith sent Jackson's Secretary of War John H. Eaton a 
Title: Oregon Territory
Content:  Originally inhabited by Native Americans, the region that became the Oregon Territory was explored by Europeans first by sea. The first documented voyage of exploration was made in 1777 by the Spanish, and both British and American vessels visited the region not long thereafter. Subsequent land-based exploration by Alexander Mackenzie and the Lewis and Clark Expedition and development of the fur trade in the region strengthened the competing claims of Great Britain and the United States. The competing interests of the two foremost claimants were addressed in the Treaty of 1818, which sanctioned a "joint occupation", by British and Americans, of a vast "Oregon Country" (as the American side called it) that comprised the present-day U.S. states of Oregon, Washington, and Idaho, parts of Montana and Wyoming, and the portion of what is now the Canadian province of British Columbia south of the parallel 54°40′ north.
Title: Treaty with the Kalapuya, etc.
Content:  the United States government to formally claim the area and protect them from real or perceived threats, both from the indigenous residents they were displacing and the British. These Americans were part of a geopolitical rivalry between the United States and Great Britain over who would control the Oregon Territory, which comprised the modern states of Oregon, Washington, Idaho, a portion of Montana, and the province of British Columbia. In 1846, the two powers concluded the Oregon Treaty, dividing the territory in half, disregarding the indigenous peoples inhabiting the lands. The lands of the Willamette Valley were thereafter part of the Oregon Territory of the United States, even though local tribes had yet to cede their land.
Title: Native American peoples of Oregon
Content:   Despite the myriad of tribal entities spread throughout the Oregon Country, their historical occupation and implicit claim to the land was barely noted and not recognized by white Americans in the East. In 1828 New England teacher Hall Jackson Kelley, a leading exponent of white colonization of the Oregon Country, hailed the region as "the most valuable of all the unoccupied parts of the earth" in a memorial to Congress. Kelley's enthusiasm was shared by others, seeking access to what they perceived as uninhabited land and willing to engage in building new communities on the frontier. European-American colonization of the Oregon Country began in earnest in 1829 with the establishment 
Title: History of Oregon
Content:  shall quit the territory," is passed in June 1844. It is soon deemed too harsh and its provisions for punishment are reduced to forced labor in December 1844. The Oregon Trail brought many new settlers to the region, starting in 1842–1843, after the United States agreed to jointly settle the Oregon Country with the United Kingdom. For some time, it seemed the United States and the United Kingdom would go to war for a third time in 75 years (see Oregon boundary dispute), but the border was defined peacefully in 1846 by the Oregon Treaty. The border between the United States and British North America was set at the 49th parallel. The Oregon Territory was 
Title: Native American peoples of Oregon
Content:  made with England concerning the turnover of the Oregon Territory to the U.S., the United States had agreed to respect the land rights of indigenous peoples living within the territory. The U.S., therefore, was legally unable to allow settlement in the area without making land cession treaties with tribal groups. To get around the issue, the United States Congress passed the Indian Treaty Act the same year that the Oregon Donation Land Act went into effect, which allowed for the appointment of commissioners who would negotiate land cession treaties with, as well as the possible removal of, Native American tribes. The decade following the implementation of both acts saw the signing of treaties with indigenous groups throughout the Oregon territory, including the Warm 

Question: who did the us share the oregon country with?
Answer: French Canadian.
British.