Hazen's Notch is a mountain pass in Westfield, in the northern Green Mountains of Vermont. Hazen's Notch was named after Moses Hazen, who in 1779 led the construction of the Bayley Hazen Military Road. The road was planned to extend from Newbury, Vermont, to Saint-Jean-sur-Richelieu, Quebec, not far from Montreal, to facilitate an invasion of Canada during the American Revolutionary War; it had reached this point when construction stopped. The State of Vermont has designated 273 acres (110 ha) as the Hazen's Notch Natural Area.