|
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.
Wikiplacemarks.com
Android Apps
Placemarks
Login
Faq
Language
좋은 아이디어 있으시면 저희에게 알려주십시오.