The Pocumtuck Range, also referred to as the Pocumtuck Ridge, is the northernmost subrange of the Metacomet Ridge mountain range of southern New England. Located in Franklin County, Massachusetts, between the Connecticut River and the Deerfield River valleys, the Pocumtuck Range is a popular hiking destination known for its continuous high cliffs, scenic vistas, and microclimate ecosystems.GeographyThe range, 11 miles long by 1.75 miles wide at its widest point, includes, from south to north, Sugarloaf Mountain of Deerfield; a central high ridge most often called Pocumtuck Ridge; and Rocky Mountain of Greenfield. Notable peaks include, from south to north: South Sugarloaf Mountain, a butte-like peak at the south end of the Pocumtuck Range, well known for its historic summit automobile road and abrupt butte-like cliffs overlooking the Connecticut River valley south.North Sugarloaf Mountain, looms above South Sugarloaf with ledges facing south and west. Pocumtuck Rock, the sandstone high point on the 2-mile long cliffs of the Pocumtuck Ridge which rise above Interstate 91 and the rural Deerfield River Valley to the west. Trap Rock Ledge, a trap rock overlook on the east side of Pocumtuck Ridge. Sachem Head, a popular, exposed overlook at the south end of Rocky Mountain. Poet's Seat Tower, high point of Rocky Mountain, overlooking Greenfield. Canada Hill, the steep northern prominence of Rocky Mountain at the confluence of the Connecticut River and Falls River, prominent from both Greenfield and from the Connecticut River mill village of Turner's Falls, Massachusetts to the east. The Deerfield River cuts between Rocky Mountain and Pocumtuck Ridge just before merging with the Connecticut River.