Tri Mills is a populated place located in Columbia County, Pennsylvania. It appears on the Red Rock USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 965.10 feet (294.16 m) above sea level.
Columbia County · Pennsylvania
Tri Mills is a populated place located in Columbia County, Pennsylvania. It appears on the Red Rock USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 965.10 feet (294.16 m) above sea level.