High Mowing School is an independent private, co-educational, day and boarding school, located in Wilton, New Hampshire, in the United States. High Mowing is the oldest Waldorf high school in Canada or the United States, and is the only Waldorf boarding school in the United States. It is a high school (grades 9 through 12). It was founded in 1942 by Beulah Hepburn Emmet, a teacher who was displeased with the politics in the public school in Connecticut in which she taught.