Beginning at a point on the westerly side line of Salem Street, 320 feet northwest of the Groveland-Georgetown line; thence in a westerly direction, 200 feet north of and parallel with the Town line, about 6,111 feet to the Residential R-1 Zone; thence in a northerly direction about 3,500 feet to a point on Center Street, 1,400 feet east of the intersection of Salem and Washington Street; thence in a northerly direction about 2,100 feet on a line 150 feet east of the thread of the stream known as Grindle Brook, which point is about 1,075 feet from the intersection of Main Street and Washington Street; thence in an easterly direction about 2,800 feet to a point on the westerly side line of Mass Electric Company easement; thence in a southerly direction, along the westerly side line of Mass Electric Company easement, about 2,280 feet to a point 150 feet north of Center Street; thence in a westerly direction about 2,100 feet, along a line 150 feet north and parallel to Center Street; thence in a southerly direction 150 feet to the north side line of Center Street; thence in a westerly direction about 870 feet, along the north side line of Center Street, to a point; thence in a southerly direction, 200 feet west of and parallel with Murray Avenue, approximately 1,800 feet to a point 200 feet west of Murray Avenue, on the south side of Salem Street; thence in an easterly direction along the south side line of Salem Street about 3,000 feet; thence in a southeasterly direction along Salem Street a distance of about 2,800 feet to the point of beginning.