LORAN-C transmitter Grangeville was the Whiskey secondary station of the Southeast U.S. LORAN-C Chain ( GRI 7980). It used a transmission power of 800 kW.

Grangeville LORAN-C transmitter, was situated at Grangeville, Louisiana at 30°43'33" N, 90°49'43" W,(30°43′33″N 90°49′43″W / 30.72583°N 90.82861°W / 30.72583; -90.82861). Grangeville LORAN-C transmitter used a 700-foot (210 m) tall mast radiator.

The station was closed on February 8, 2010, as a budget cut. The station, and all of the others, were considered to be obsolete with the general availability of GPS systems. The transmitter has been dismantled.

• http://www.tech-service.net/loran/LORAN-1.XLS^{[permanent dead link‍]}
• http://www.megapulse.com/chaininfo.html Archived 2012-02-06 at the Wayback Machine