On August 2, 2025 Derek Percoski became the first person to climb the highest 500 ranked Idaho peaks. This journey included all of the 12ers, 11ers and 10ers plus a few 9ers. Derek celebrated his accomplishment by gathering a group of Idaho peakbaggers to climb Peak 10,309 in the Lost River Range. This group included 12 11er finishers. We dubbed the gathering Derekfest over Derek’s vigorous objections. Check out Derek’s website for the details of his accomplishment at this link: Derek Percoski