A. Contour interval is 10 feet.
B. The island is about 4 miles in width (east-west) and 5 miles in length (north-south).
C. The east side of the island is relatively straight and very steep
D. The west side of the island has an irregular coastline and has a long gentle slope.
E. The summit of the island is at 84 feet elevation (mark with a point).