Mount Sylvania

Mount Sylvania
Top as seen from Tualatin
Elevation	978 ft (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°W / 45.438167; -122.721639Coordinates: 45°26′17.4″N 122°43′17.9″W / 45.438167°N 122.721639°W / 45.438167; -122.721639[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 Sylvania campus of Portland Community College is located on the mountain's western slopes.

References

1. ^ ^{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. 
2. ^ "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. 

• "Mount Sylvania". Geographic Names Information System, U.S. Geological Survey. http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1136807. Retrieved 2008-11-17.