A quadrant of four sets of curved paths emanating from a central ring, with additional circles scattered about throughout the pattern. About 300' dia.   

A quadrant of four sets of curved paths emanating from a central ring, with additional circles scattered about throughout the pattern. About 300' dia.   (photo 2)

A quadrant of four sets of curved paths emanating from a central ring, with additional circles scattered about throughout the pattern. About 300' dia.   (photo 3)