where is seneca, or?
Seneca, OR Real Estate Insights Seneca is a city in Grant County, Oregon. It is located in the Blue Mountains about 23 miles south of Canyon City, on U.S. Route 395, on the edge of the Malheur National Forest. For homeowners who enjoy walking, Seneca is a perfect area to live in because the well-maintained network of footpaths makes it easy to get to work on foot. Seneca & Nearby Cities Mount Vernon Real Estate |