Editing Multnomah County, Oregon (section)

==Geography==
[[File:Portland, Oregon skyline from the Ross Island Bridge.jpg|alt=|thumb|280x280px|Portland]]
According to the [[United States Census Bureau]], the county has a total area of {{convert|466|sqmi}}, of which {{convert|34|sqmi}} (7.4%) are covered by water.<ref name="GR1">{{Cite web |date=August 22, 2012 |title=2010 Census Gazetteer Files |url=http://www2.census.gov/geo/docs/maps-data/data/gazetteer/counties_list_41.txt |url-status=live |archive-url=https://web.archive.org/web/20201027210340/https://www2.census.gov/geo/docs/maps-data/data/gazetteer/counties_list_41.txt |archive-date=October 27, 2020 |access-date=February 26, 2015 |publisher=United States Census Bureau}}</ref> It is the smallest county in Oregon by area. It is located along the south side of the [[Columbia River]].

The county includes a number of extinct volcanoes in the [[Boring Lava Field]]. The Oregon side of the [[Columbia River Gorge]] forms the eastern portion of the county's northern border.

===Major highways===
*{{jct|state=OR|I|5}}
*{{jct|state=OR|I|84}}
*{{jct|state=OR|I|205}}
*{{jct|state=OR|I|405}}
*{{jct|state=OR|US|26}}
*{{jct|state=OR|US|30}}
*{{jct|state=OR|US-Byp|30}}
*{{jct|state=OR|US|99}} (decommissioned)
*{{jct|state=OR|OR|10}}
*{{jct|state=OR|OR|43}}
*{{jct|state=OR|OR|120}}
*{{jct|state=OR|OR|213}}

===Adjacent counties===
*[[Columbia County, Oregon|Columbia County]] – northwest
*[[Clark County, Washington]] – north
*[[Skamania County, Washington]] – northeast
*[[Hood River County, Oregon|Hood River County]] – east
*[[Clackamas County, Oregon|Clackamas County]] – south
*[[Washington County, Oregon|Washington County]] – west

===National protected areas===
*[[Columbia River Gorge|Columbia River Gorge National Scenic Area]] (part)
*[[Mount Hood National Forest]] (part)