1. Sumpter Valley Dredge
441 Mill St, Sumpter, OR 97877
Coordinate: 44.74228,-118.2024
Phone: (541) 894-2486
2. Powder River Rural Fire Dept Mosquito Flats
39744 Sumpter Valley Hwy, Sumpter, OR 97877
Coordinate: 44.73164,-118.190605
Phone: (541) 894-0140
3. Granite City Office
1378 Main St, Sumpter, OR 97877
Coordinate: 44.80894,-118.41798
Phone: (541) 755-5100