"ithin reach.Potential visitors unfamiliar with Arizona may be concerned about the recent spate of fires.Those are not an issue in the Valley; the Yarnell fire that killed 19 firefighters is 85 miles (about 237 kilometers) northwest of Phoenix and most of the resorts here are far away from the mountains where lightning-strike blazes usually spark.The heat is another story.The running joke about the" . . . .