Description: Submarine Cable Areas may contain one or more submarine cables. The geographic scope of that area is governed by local conditions but shall include the immediate area which overlies a cable. Ordinarily, the area will depict the full cable area but should not exceed 500 feet on each side of the location of the cable, except when a small scale chart was the best available source for cable locations. 30 CFR 585.301 defines a minimum 100 foot wide right of way grant on each side of a cable.