Oregon ( ORR-ih-ghən, -gon) is a state in the Pacific Northwest region of the United States. It is a part of the Western United States, with the Columbia River delineating 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. The western boundary is formed by the Pacific Ocean.
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 to mid-16th century. As early as 1564, 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 ocean currents in the Pacific Northwest, including the Oregon coast as well as the strait now bearing his name. The Lewis and Clark Expedition traversed Oregon in the early 19th century, and the first permanent European settlements in Oregon were established soon afterward by trappers and fur traders. The United States received joint occupation rights to the region from the United Kingdom through the Treaty of 1818. The Oregon Treaty of 1846 formally brought Oregon under American sovereignty, and the Oregon Territory was created two years later. Oregon was admitted to the United States on February 14, 1859, becoming the 33rd state.
Today, with 4.2 million people over 98,000 square miles (250,000 km2), Oregon is the ninth-largest and 27th-most populous U.S. state. The capital, Salem, is the third-most populous city in Oregon, with 175,535 residents. Portland, with 652,503, ranks as the 26th among U.S. cities. The Portland metropolitan area, which includes neighboring counties in Washington, is the 26th largest metro area in the nation, with a population of 2,512,859. Oregon is also one of the most geographically diverse states in the U.S., marked by volcanoes, abundant bodies of water, dense evergreen and mixed forests, as well as high deserts and semi-arid shrublands. At 11,249 feet (3,429 m), Mount Hood is the state's highest point. Oregon's only national park, Crater Lake National Park, comprises the caldera surrounding Crater Lake, the deepest lake in the U.S. The state is also home to the single largest organism in the world, Armillaria ostoyae, a fungus that runs beneath 2,200 acres (8.9 km2) of the Malheur National Forest.
Oregon's economy has historically been powered by various forms of agriculture, fishing, logging, and hydroelectric power. Oregon is the top lumber producer of the contiguous U.S., with the lumber industry dominating the state's economy during the 20th century. Technology is another one of Oregon's major economic forces, beginning in the 1970s with the establishment of the Silicon Forest and the expansion of Tektronix and Intel. Sportswear company Nike, Inc., headquartered in Beaverton, is the state's largest public corporation with an annual revenue of $46.7 billion.
The name Oregon is of obscure origin. It appeared for the first time in 1765, in a petition written by Robert Rogers, a Massachusetts-born officer in the British Army. The petition, addressed to George III, sought royal patronage for an expedition to "the River called by the Indians Ouragon", which supposedly lay in the far west of North America. In subsequent writings, Rogers used the spellings Ourigan, Ourgan, and Ouregan. It is not clear where Rogers drew the name from. One theory is that it came from a misreading of Baron de Lahontan's map of North America, which labels the Wisconsin River as the Ouaricon-sint (a corrupt form of Ouisconsing, the French name for the river). Another is that it was coined by Rogers himself using an Algonquian word meaning "good" or "beautiful" (cf. Wauregan, Connecticut, which takes its name from the same word). Theories tracing the name to the Spanish words orégano and oreja, meaning "marjoram" and "ear" respectively, are regarded as implausible.
The first work to use the modern spelling was Jonathan Carver's Travels Through America (1778), which identifies the "Oregon or [...] River of the West" as one of the "four great rivers" of North America. Carver's source for this information was evidently Rogers, with whom he was personally acquainted. The "River of the West" would subsequently come to be known as the Columbia, leaving the name Oregon to fall into obscurity. It was revived by the poet William Cullen Bryant, who used it in his celebrated work "Thanatopsis" (1817). The first person to apply the name to a territory rather than a river was Hall J. Kelley, a prominent advocate of the United States' claim to the disputed Columbia region, which he referred to as the "Oregon Country". Finally, in 1848, that part of the region lying south of the 49th parallel was organized as the "Territory of Oregon", receiving statehood in 1859.
While there is considerable evidence that Paleo-Indians inhabited the region, the oldest evidence of habitation in Oregon was found at Fort Rock Cave and the Paisley Caves in Lake County. Archaeologist Luther Cressman dated material from Fort Rock to 13,200 years ago, and there is evidence supporting inhabitants in the region at least 15,000 years ago. By 8000 BC, there were settlements throughout the state, with populations concentrated along the lower Columbia River, in the western valleys, and around coastal estuaries.
During the prehistoric period, the Willamette Valley region was flooded after the collapse of glacial dams from Lake Missoula, located in what is now Montana. These massive floods occurred during the last glacial period and filled the valley with 300 to 400 feet (91 to 122 m) of water.
By the 16th century, Oregon was home to many Native American groups, including the Chinook, Coquille (Ko-Kwell), Bannock, Kalapuya, Klamath, Klickitat, Molala, Nez Perce, Shasta, Takelma, Umatilla, and Umpqua.
European and pioneer settlement
The first Europeans to visit Oregon were Spanish explorers led by Juan Rodríguez Cabrillo, who sighted southern Oregon off the Pacific coast in 1543. Sailing from Central America on the Golden Hind in 1579 in search of the Strait of Anian during his circumnavigation of the Earth, the English explorer and privateer Sir Francis Drake briefly anchored at South Cove, Cape Arago, just south of Coos Bay, before sailing for what is now California. Martín de Aguilar, continuing separately from Sebastián Vizcaíno's scouting of California, reached as far north as Cape Blanco and possibly to Coos Bay in 1603. Exploration continued routinely in 1774, starting with the expedition of the frigate Santiago by Juan José Pérez Hernández, and the coast of Oregon became a valuable trade route to Asia. In 1778, British captain James Cook also explored the coast.
French Canadians, Scots, Métis, and other continental natives (e.g. Iroquois) trappers arrived in the late 18th and early 19th centuries, soon to be followed by Catholic clergy. Some traveled as members of the Lewis and Clark and Astor Expeditions. Few stayed permanently such as Étienne Lussier, often referred to as the first "European" farmer in the state of Oregon. Evidence of the French Canadian presence can be found in numerous names of French origin such as Malheur Lake, the Malheur, Grande Ronde, and Deschutes Rivers, and the city of La Grande. Furthermore, many of the early pioneers first came out West with the North West Company and the Hudson's Bay Company before heading South of the Columbia for better farmland as the fur trade declined. French Prairie by the Willamette River and French Settlement by the Umpqua River are known as early mixed ancestry settlements.
The Lewis and Clark Expedition traveled through northern Oregon also in search of the Northwest Passage. They built their winter fort in 1805–1806 at Fort Clatsop, near the mouth of the Columbia River, staying at the encampment from December until March.