Complex sentence: However, monitoring stations in Antarctica are few and far between; prior to 1995, Vostok was the only research station on the Antarctic Plateau above the elevation of, with no other stations for several hundreds of kilometers in any direction.
Split into simpler sentences: However, monitoring stations in Antarctica are few and far between. Prior to 1995, Vostok was the only research station on the Antarctic Plateau above the elevation of, with no other stations for several hundreds of kilometers in any direction.