Natchitoches Regional Airport

Natchitoches Regional Airport is a city-owned public-use airport located two nautical miles south of the central business district of Natchitoches, a parish seat of Natchitoches Parish, Louisiana, United States.

Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned IER by the FAA but has no designation from the IATA.

The airport is the location of the plane crash which claimed the lives of Jim Croce and several others at 9:45 PM CDT on September 20, 1973, less than an hour after the end of Croce's last concert.

Source: Wikipedia