The artists created 300 copper medallions (approximately 39 inches in diameter) along a three-mile stretch of Central Avenue as part of the 1990 Central Avenue Beautification project. Mounted atop decorative light poles, the medallions feature 22 distinct designs based upon Southwest Native American petroglyph images.  The medallions were fabricated in solid copper using contemporary and traditional metal-working techniques. In addition to the medallions, the beautification project added 900 trees and widened sidewalks along Phoenix's central corridor.