It is most probable that the American territory was named by the Spaniards, as there are some populations in Spain such as "Arroyo del Oregón" (which is situated in the province of Ciudad Real), also considering that the individualization in Spanish language "El Orejón" with the mutation of the letter "g" instead of "j".Another early use of the name, spelled Ouragon, was in a 1765 petition by Major Robert Rogers to the Kingdom of Great Britain.Western Oregon's mountainous regions, home to three of the most prominent mountain peaks of the United States including Mount Hood, were formed by the volcanic activity of the Juan de Fuca Plate, a tectonic plate that poses a continued threat of volcanic activity and earthquakes in the region.The most recent major activity was the 1700 Cascadia earthquake. Helens erupted in 1980, an event visible from northern Oregon and affecting some areas there.
Oregon's geographical center is further west than any of the other 48 contiguous states (although the westernmost point of the lower 48 states is in Washington).Gray wolves were extirpated from Oregon around 1930 but have since found their way back; most of them reside in northeast Oregon, but there are now two packs living in the south-central part of the state.Oregon has three national park sites: Crater Lake National Park in the southern part of the Cascades, John Day Fossil Beds National Monument east of the Cascades, and Lewis and Clark National and State Historical Parks on the north coast.) 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.Oregon was inhabited by many indigenous tribes before Western traders, explorers, and settlers arrived. The capital, Salem, is the second most populous city in Oregon, with 164,549 residents.An autonomous government was formed in the Oregon Country in 1843 before the Oregon Territory was created in 1848. Today, at 98,000 square miles (250,000 km), Oregon is the ninth largest and, with a population of 4 million, 27th most populous U. Portland, with 632,309 residents, is the most populous and ranks as the 26th most populous city in the United States.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 km Because of its diverse landscapes and waterways, Oregon's economy is largely powered by various forms of agriculture, fishing, and hydroelectric power.The term referred to the then-mythical River of the West (the Columbia River). One theory is that the name comes from the French word ouragan ("windstorm" or "hurricane"), which was applied to the River of the West based on Native American tales of powerful Chinook winds on the lower Columbia River, or perhaps from firsthand French experience with the Chinook winds of the Great Plains.At the time, the River of the West was thought to rise in western Minnesota and flow west through the Great Plains.