Simplify the following text for a Grade 7 native English-speaking person.
Original: In 1998-1999 , a camp was operated at the Ford Ranges ( FRD ) in western Marie Byrd Land , supporting a part of a US Antarctic Program ( USAP ) airborne survey initiated by UCSB and supported by the University of Texas Institute for Geophysics .
Simplified: In 1998 and 1999 , a camp was operated at the Ford Ranges ( FRD ) in western Marie Byrd Land . The camp supported a part of an US Antarctic Program ( USAP ) airborne survey .