Oregon is a state in the Pacific Northwest region on the West coast of the United States. The Columbia River delineates much of Oregon's northern boundary along Washington state, while the Snake River delineates much of its eastern boundary along Idaho. The parallel 42° north delineates the southern boundary with California and Nevada. It is one of only three states of the contiguous United States to have a coastline on the Pacific Ocean.
Oregon was inhabited by many indigenous tribes before Western traders, explorers, and settlers arrived. An autonomous government was formed in the Oregon Country in 1843 before the Oregon Territory was created in 1848. Oregon became the 33rd state on February 14, 1859. Today, at 98,000 square miles (255,000 km²), Oregon is the ninth largest and, with a population of 4 million, 27th most populous U.S. state. The state capital, Salem, is the second most populous of its cities, with 164,549 residents, while Portland, with 632,309 residents, is the most populous, ranking as the 26th most populous city in the United States. The Portland metropolitan area, which also includes the city of Vancouver, Washington to the north, ranks the 23rd largest metro in the nation with a population of 2,389,228.
Oregon is one of the most geographically diverse states in the United States, 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 United States. The state is also home to the single largest organism in the world, Armillaria ostoyae, a fungus that runs beneath 8.9 km2 (2,200 acres) of the Malheur National Forest.
Because of its diverse landscapes and waterways, Oregon's economy is largely powered by various forms of agriculture, fishing, and hydroelectric power. It is also the top timber-producer of the lower 48 states. Technology is another one of the state's major economic forces, which began 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 $30.6 billion.