MISSOULA, Mont. — Chilled by an autumn wind, Enrique Marquez watched from horseback as the sheep gamboled down the mountain. A border collie nipped the heels of wayward ewes. All summer and into the fall, the flock grazed on noxious weeds infesting about 1,000 acres of public lands above the Missoula Valley as part of this city’s effort to restore its native prairie grasses.
Tags: targeted grazing