Joppa Quarry Canal, Little Gunpowder River, Big Gunpowder River, and Days Cove encompass the area north of a line beginning at a point on shore at or near Lat. 39° 23.558’ N., Long. 76° 21.048’ W., then running 244° (True) to a point at the east entrance of the Little Gunpowder River, at or near Lat. 39° 23.404’ N., Long. 76° 21.459’ W., then running 244° (True) to a point on the shore at or near Lat. 39° 23.165’ N., Long. 76° 22.093’ W. Except as otherwise restricted, the speed limit for this area is 6 knots.