The surface of the field for most of its existence was natural bluegrass, but for nine seasons, from 1970 to 1978, the stadium had artificial turf. A "sliding pit" configuration, with dirt cut-outs only around the bases, was installed in 1971, primarily to keep the dust down in the breezy conditions. Following the 1978 football season, the playing surface was restored to natural grass.
The surface of the field for most of its existence was natural bluegrass, but for nine seasons from 1970 to 1978, the stadium had artificial turf. A "sliding pit" configuration, with dirt cut-outs ,only around the bases, was installed in 1971, primarily to keep the dust down in the breezy conditions. Following the 1978 football season, the playing surface was restored to natural grass.