By A Mystery Man Writer
Portland, city, seat (1854) of Multnomah county, northwestern Oregon, U.S. The state’s largest city, it lies just south of Vancouver, Washington, on the Willamette River near its confluence with the Columbia River, about 100 miles (160 km) by river from the Pacific Ocean. Portland is the focus of a
Ecological Inspirations – Hidden Hydrology
The American Association of Immunologists - Portland
Map of downtown Portland, with pictorial illustrations
File:Map of Portland, Oregon land claims from Gaston book.png - Wikipedia
Central Eastside, Portland, Oregon - Wikipedia
File:Portland downtown map.svg - Wikimedia Commons
A historian is unearthing records of where Portlanders of color couldn't legally live - PUBLIC HISTORY PDX
Portland
Portland, Oregon - Wikipedia
History of Portland, Oregon - Wikipedia
Portland, History, Description, Map, & Facts
File:Map Showing Lines of the Portland Railway Light and Power Company Portland Oregon June 1912.png - Wikipedia
Mapping the Bayou « Alameda Old House History
File:Portland downtown map.png - Wikimedia Commons