Written by Kristen Kovatch, Managing Editor, HorseNation.com and intrepid driver of Percherons. Originally published June 6, 2017.  Part marathon, part in-hand endurance racing, 100% awesome. It’s an official Colorado summer heritage sport. It has a Triple Crown. It has its own “ass-ociation” (its phrasing, not mine) and members and by-laws. It’s pack burro racing, and it [...]