The Magothy River north shore areas, with their corresponding speed limits, are set forth in §§B—J of this regulation. Blackhole Creek encompasses the area north of a line beginning at a point at or near Lat. 39° 4.862' N., Long. 76° 29.838' W., then running 84° (True) to a point, at or near Lat. 39° 4.870' N., Long. 76° 29.740' W., and running to the head of the creek, including all tributaries. This area has a 6-knot speed limit all year. Broad Creek encompasses the area north of a line beginning at a point at or near Lat. 39° 5.157' N., Long. 76° 28.795' W., then running 266° (True) to a point, at or near Lat. 39° 5.147' N., Long. 76° 28.993' W., and running to the head of the creek. This area has a 6-knot speed limit all year. Cornfield Creek encompasses the area north of a line beginning at a point at or near Lat. 39° 5.573' N., Long. 76° 26.392' W., then running 64° (True) to a point, at or near Lat. 39° 5.622' N., Long. 76° 26.267' W., and running to the head of the creek. This area has a 6-knot speed limit all year. Grays Creek and Sillery Bay. Area. All of the waters of the Magothy River, Sillery Bay, and Grays Creek enclosed by a line beginning at a point on the east end of Dobbins Island defined by Lat. 39°04.710' N, Long. 76°27.520' W; then running 7° True to Hickory Point defined by Lat. 39°05.310' N, Long. 76°27.430' W, then running along shore, including all of Grays Creek, to a point defined by Lat. 39°05.090' N, Long. 76°27.920' W, then running 171° True to a point on the west end of Dobbins Island defined by Lat. 39°04.670' N, Long. 76°27.840' W, then running along shore back to the point of beginning. The speed limit for the area described in §E(1) of this regulation is 6 knots at all times. The inner harbor of Gibson Island encompasses the area beginning at a point at or near Lat. 39° 5.373' N., Long. 76° 25.780' W., then running 41°(True) to a point, at or near Lat. 39° 5.470' N., Long. 76° 25.672' W., and running upstream to the head of the harbor, including Redhouse Cove. This area has a 6-knot speed limit all year. Magothy Narrows, except James Pond and Cornfield Creek encompasses the area west of a line beginning at a point at or near Lat. 39° 5.223' N., Long. 76° 26.658' W., then running 0° (True) to a point, at or near Lat. 39° 5.687' N., Long. 76° 26.657' W., and east of a line beginning at a point, at or near Lat. 39° 5.373' N., Long. 76° 25.780' W., then running 41° (True) to a point, at or near Lat. 39° 5.470' N., Long. 76° 25.672' W., and south of a line beginning at a point, at or near Lat. 39° 5.600' N., Long. 76° 26.203' W., then running 104° (True) to a point, at or near Lat. 39° 5.585' N., Long. 76° 26.127' W., and south of a line beginning at a point, at or near Lat. 39° 5.573' N., Long. 76° 26.392' W., then running 64° (True) to a point, at or near Lat. 39° 5.622' N., Long. 76° 26.267' W. This area has a 6-knot speed limit Saturdays, Sundays, and State holidays, during the boating season. Ross Cove encompasses the area beginning at the mouth of the creek, at or near Lat. 39° 5.238' N., Long. 76° 30.913' W., then running 90° (True) to a point, at or near Lat. 39° 5.238' N., Long. 76° 30.902' W., and running to the head of the cove. This area has a 6-knot speed limit all year. James Pond encompasses the area beginning at the mouth of the pond, at or near Lat. 39° 5.600' N., Long. 76° 26.203' W., then running 104° (True) to a point, at or near Lat. 39° 5.585' N., Long. 76° 26.127' W., and running to the head of the pond. This area has a 6-knot speed limit all year.