Top as seen from Tualatin
|Elevation||978 ft (298 m) NAVD 88|
|Prominence||510 ft (155 m) |
|Location||Multnomah County, Oregon, U.S.|
|Parent range||Tualatin Mountains|
|Topo map||USGS Lake Oswego|
|Mountain type||Shield volcano|
|Volcanic field||Boring Lava Field|
Mount Sylvania is an extinct volcano, part of the Boring Lava Field, on the outskirts of Portland, Oregon. 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.
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