FILL 'ER UP: Volunteers watch as donated concrete fills a 28-foot-deep mine shaft Monday on state land near Gold Canyon. With Arizona's budget strained, the state mine inspector is urging more companies to volunteer materials and manpower to fill in some of the open mine shafts around Arizona.
Guest commentary by Phil Kerpen
By Mark Heller, Tribune
By Mark Scarp, contributing columnist
By Jerry Brown, contributing columnist
Guest Commentary by Bill Richardson