All of the following parcels of land are hereby designated as a conservation zone: (1) A parcel of land located west of the Niantic River, beginning at a point 1000 feet to the southeast of the highway limits of Interstate Route 95 and 1500 feet to the west of the mean high water line of the Niantic River and proceeding southerly in a direct line for a distance of 5000 feet to a point 2000 feet to the west of the mean high water line of the Niantic River, thence due east along a line to the intersection of said line with the mean high water line of the Niantic River, thence northerly along said mean high water line to a point 750 feet southerly of U.S. Route 1, thence westerly to the point of beginning and (2) a parcel of land located east of the Niantic River, 100 feet landward of the mean high water line of the Niantic River, from the Golden Spur Ridge to Sandy Point.