Seneca is a city in Grant County, Oregon, United States. 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. The population was 199 at the 2010 census.
Download Download See moreWikipedia https://en.wikipedia.org/wiki/Seneca,_Oregon
Coordinates 44°8'4.553" N -118°58'17.81" E