Truckee Donner Horsemen "TDH" is a non-profit 501(c)3 organization founded in 1962 in Truckee, California whose purpose is to sponsor, cultivate, and foster an interest in horses and horsemanship throughout the Truckee, Donner, and Sierra areas in the State of California.

We strive to promote horsemanship, a healthy equestrian lifestyle, responsible horse ownership and preservation of Truckee's McIver Arena.