Portland is a city at the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. With a population of 562,690 it is Oregon's most populous city, and the third most populous city in the Pacific Northwest, after Seattle, Washington and Vancouver, British Columbia. Approximately two million people live in the surrounding metropolitan area (MSA), the 23rd most populous in the United States

Portland was incorporated in 1851 and is the seat of Multnomah County; it extends slightly into Washington and Clackamas Counties as well.

The city and region are noted for strong land-use planning and investment in public transit, supported by Metro, a distinctive regional-government scheme. Portland lies in the Marine West Coast climate region, which is marked by warm summers and rainy but temperate winters. This climate is ideal for growing roses, and for more than a century Portland has been known as "The City of Roses," and has many rose gardens – most prominently the International Rose Test Garden. Portland is also known for its large number of microbreweries, and as the home of the Trail Blazers NBA basketball team.