Millhaven is a beautiful private boarding facility located in Derwood, Montgomery County, MD, a suburb of Washington, DC. We are conveniently located near Rockville, Silver Spring, Olney and Gaithersburg, Md. Our first priority is the comfort and safety of horses. Owners live in the barn, over the stalls, and our highly experienced staff live on the farm, so we really are able to provide individualized, 24/7 care. We have an indoor no-dust arena, lighted outdoor, heated bathroom, tack room, and DIRECT access to miles of protected parkland.... (read more) Boarders are primarily adult pleasure riders — all disciplines are welcome. This is not a competitive barn. We ride for fun. See reviews about Millhaven on our Facebook page and website!