From a trigonometrical survey under the direction of A. D. Bache, Superintendent of the survey of the coast of the United States. Triangulation by C. O. Boutelle and C. P. Bolles, Assistants. Topography by John Seib, Assistant. Hydrography by the parties under the command of Lieut. Comdg. J. N. Maffitt, U.S.N. and C. O. Boutelle, Assists. United States Coast Survey. CREATED/PUBLISHED [Washington, U.S. Coast Survey], 1864. NOTES Scale 1:40,000.