Sweetgrass, the absorbing documentary by Ilisa Barbash and Lucien Castaing-Taylor on the last of Montana sheep-herders, premieres tonight on many PBS stations. The film has been garnering critical acclaim from top critics across the country.

POV's 24th season continues with the U.S. broadcast premiere of Sweetgrass, a riveting and poetic portrait of the American West just as one of its traditional ways of life dies out, Tuesday, July 5, 2011, on PBS.