After battling 80-mile-per-hour winds on Humphreys Peak, evading a pack of charging javelinas in the Mazatzal Wilderness and hiking the Grand Canyon in a blizzard, John Heckenlaible decided it was time to give something back to the Arizona trails he loves. Joining the City of Phoenix parks stewardship program felt like a good way to do so. “I was climbing Piestewa Peak one day and saw two guys wearing bright yellow Phoenix Park Steward shirts,”...