CHERRY HILLS VILLAGE — Around the back of the clubhouse at Cherry Hills Country Club, surrounding the 18th green, the gallery pulsed. It was the second day of the U.S. Amateur Championship featuring a field full of future PGA Tour talent, and as golfers finished out, a murmuring tension that only premium players can summon dominated the air. It felt like the return of primetime golf in Colorado — and possibly a prelude for something much greater. Since the last men’s major was held in Colorado in 1985, the state’s hosted plenty of notable golf tournaments such as the U.S.