# Mount Sylvania

- **Country:** United States
- **Coordinates:** 45.438174, -122.721648
- **Url:** https://vulcan.wr.usgs.gov/Volcanoes/Oregon/BoringLavaField/description_boring_lava.html
- **Topo:** USGS Lake Oswego
- **Type:** Shield volcano
- **Range:** Tualatin Mountains
- **Title:** The Boring Lava Field, Portland, Oregon
- **Location:** Multnomah County, Oregon, U.S.
- **Etymology:** Derived from Silvanus, a Roman tutelary deity
- **Publisher:** USGS: Cascades Volcano Observatory
- **Accessdate:** 2008-04-01 }}
- **Archiveurl:** https://web.archive.org/web/20110701101745/http://vulcan.wr.usgs.gov/Volcanoes/Oregon/BoringLavaField/description_boring_lava.html
- **Prominence:** 510 ft
- **Archivedate:** 2011-07-01
- **Elevation Ft:** 978
- **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.

![Photo of Mount Sylvania](https://upload.wikimedia.org/wikipedia/commons/6/6d/Mount_Sylvania_in_Portland_Oregon.JPG)

**Source:** https://en.wikipedia.org/wiki/Mount_Sylvania (Wikipedia, CC BY-SA)