Greenhorn
Baker and Grant County, 97360
If you make it to Sumpter and Granite you might as well go to Greenhorn. I believe Greenhorn to be the highest incorporated town in Oregon (6270") with the least population ( 3 in 2000). We haven't even found the place yet! Now in the 2010 census they have zero population but the elevation is still the same. The census did list seven housing units. The townsite sits astraddle the ridge that divides Grant and Baker counties so the town is divided.