Mount Sylvania
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| Mount Sylvania | |
|---|---|
 Top as seen from Tualatin |
|
| Elevation | 978 feet (298 m) NAVD 88 [1] |
| Location | |
| Location | Multnomah County, Oregon, USA |
| Range | Tualatin Mountains |
| Coordinates | 45°26′17.4″N 122°43′17.9″W / 45.438167°N 122.721639°WCoordinates: 45°26′17.4″N 122°43′17.9″W / 45.438167°N 122.721639°W [1] |
| Topo map | USGS Lake Oswego |
| Geology | |
| Type | Shield volcano [2] |
| Volcanic arc/belt | Boring Lava Field |
Mount Sylvania is an extinct volcano, part of the Boring Lava Field, on the outskirts of Portland, Oregon. The parts of the mountain are within the cities of Portland, Lake Oswego, and Tigard. Mountain Park, a Lake Oswego suburban development, was built on the mountain in the 1970s. The mountain is in the Tualatin Mountains which are often referred to as Portland's West Hills.
The Sylvania campus of Portland Community College is located on the mountain's western slopes.
[edit] References
- ^ a b "Sylvania Reset". NGS data sheet. U.S. National Geodetic Survey. http://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=RD2538. Retrieved 2008-11-17.
- ^ "The Boring Lava Field, Portland, Oregon". USGS: Cascades Volcano Observatory. http://vulcan.wr.usgs.gov/Volcanoes/Oregon/BoringLavaField/description_boring_lava.html. Retrieved 2008-04-01.
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