|Oreg., Abbreviation: OR a state of the northwestern US, on the Pacific: consists of the Coast and Cascade Ranges in the west and a plateau in the east; important timber production. Capital: Salem. Pop: 3 559 596 (2003 est). Area: 251 418 sq km (97 073 sq miles)|
State in the northwestern United States bordered by Washington to the north, Idaho to the east, Nevada and California to the south, and the Pacific Ocean to the west. Its capital is Salem, and its largest city is Portland.
Note: Before the coming of the railroads, the Oregon Trail was used as an overland emigration route from the Missouri River to the Columbia River country (all of which was then called Oregon).