The surface was natural grass, except for six seasons in the 1970s.

Through the 1968 season, the stadium's playing surface was natural grass.

From 1921 to the end of the 1967 season the field surface was natural grass.

During that last season problems with the natural grass began to arise.

From 1927 to 1968, the stadium's field was covered in natural grass.

They played their last game on the natural grass before a crowd of 21,212.

For its first 46 years, the stadium's playing field was natural grass.

The new proposal calls for a performance area covered with natural grass.

The rest of the actual field is always natural grass.

It was the Reds' first game of the season on natural grass.