1898. Century Company. Relief shown by hachures and spot heights. Depths shown by isolines. Includes text. At head of title: The Century Atlas. "No. 68 1/2. 44 x 33... Century Co. (New York).
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1898. Morey, W. Relief shown by hachures.; In upper left corner: Adjutant General's Office, Military Information Division.; Includes inset of Isla Culebra and Isla... Julius Bien (New York).
1981. United States. Soil Conservation Service. Shows land use.; Part of title in Spanish.; Includes location map.; "December 1981 4-R-37726." 66 x 92 centimeters Scale 1:50,000. The Service (San Juan, P.R.).
1981. United States. Soil Conservation Service. Shows land use.; Part of title in Spanish.; Includes location map.; "December 1981 4-R-36326." 66 x 91 centimeters Scale 1:50,000. The Service (San Juan, P.R.).
1981. United States. Soil Conservation Service. Shows land use.; Part of title in Spanish.; Includes location map.; "November 1981 4-R-36315." 92 x 122 centimeters Scale 1:50,000. The Service (San Juan, P.R.).
1982. United States. Soil Conservation Service. Shows land use.; Part of title in Spanish.; Includes location map.; "January 1982 4-R-37730." 91 x 74 centimeters Scale 1:50,000. The Service (San Juan, P.R.?).
1913. American Bank Note Company. Shows railroads, steamship routes, and submarine telegraph lines.; Depths shown by gradient tints, isolines, and spot heights.; "Copyright, 1913, b... National Geographic Society (Washington, D.C.?), 1913.
1855. Chart shows Virgin Islands and eastern end of Puerto Rico. on sheet 112 x 76 centimeters Scale 1:245,833. Scales of insets vary. General Map Collec... James Imray & Son, 102, Minories (London).
1927. United States. Forest Service. District boundaries and numbers shown in red.; Includes text, insets of Alaska and Puerto Rico, and lists of forest supervisors headquarters, exper... U.S. Forest Service (Washington).
10. NHD Flowline
2004. U.S. Geological Survey in cooperation with U.S. Environmental Protection Agency, USDA Forest Service, and other Federal, State and local partners (see dataset specific metadata under Data_Set_Credit for details). The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that m... Reston (va.). U.s. Geological Survey.