Includes key to abbreviations. Selective relief shown by hachures and spot heights; depths shown by soundings. Conic projection. Engraved by Matthews, Northrup & Co. Compiled from U.S.C. Survey charts nos. 701, 702, 756, 786, 798, 806 and 960;...
Includes key to abbreviations. Selective relief shown by hachures and spot heights; depths shown by soundings. Conic projection. Engraved by Matthews, Northrup & Co. Compiled from U.S.C. Survey charts nos. 701, 702, 756, 786, 798, 806 and 960;...
Includes key to abbreviations. Selective relief shown by hachures and spot heights; depths shown by soundings. Conic projection. Engraved by Matthews, Northrup & Co. Compiled from U.S.C. Survey charts nos. 701, 702, 756, 786, 798, 806 and 960;...