2006. United States. Agricultural Research Service. This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Isla... National Atlas of the United States.
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1927. Kroll Map Company, inc. Relief shown by hachures and spot heights.; Shows mineral resources, steamship routes, glaciers, cable lines, etc.; Includes inset of Aleutian Isla... Kroll Map Co (Seattle, Wash), 1927.
2005. Geological Survey (U.S.). This polygon shapefile portrays the state boundaries of the United States, and the boundaries of Puerto Rico and the U.S. Virgin Islands. The map l... Geological Survey (U.S.).
1924. Geological Survey (U.S.). Relief shown by contours, form lines, and spot heights.; "Surveyed in 1902, 1905, 1906, 1909, 1910, 1913, and 1916." 88 x 90 centimeters Scale 1:25... U.S. Geological Survey (Washington, D.C).
1898. Geological Survey (U.S.). Relief shown in hachures.; Includes parts of the Yukon Territory and northern British Columbia.; Includes 2 inset maps: The Klondike gold field, Ca... U.S.Geological Survey (Washington, D.C).
1914. Rand McNally and Company. Relief shown by hachures and spot heights.; Includes indices to principal cities and to railroads.; Insets: [Aleutian Islands] -- Seward Peninsula ... Rand McNally (Chicago).
1871. United States. War Department. Office of the Chief of Engineers. Relief shown by hachures.; "From a reconnaissance made under the orders of Major General H.W. Halleck, U.S. Army, Commanding the Military Division ... U.S. War Dept., Office of the Chief of Engineers (Washington, D.C).
2005. National Atlas of the United States. This polygon shapefile portrays the time zones of the United States, Puerto Rico, and the U.S. Virgin Islands. Also included are the Greenwich Mean... National Atlas of the United States.
1910. United States. Forest Service. Relief shown by contours, hachures and spot heights. on sheets 51 x 81 centimeters or smaller Scale approximately 1:570,240 General Map Collection. Forest Service (Washington D.C).
1929. United States. Forest Service. Relief shown by hachures and spot heights.; Greenwich prime meridian.; "Printed by the U.S. Geological Survey."; Inset: northwest continuation of m... The Service (Washington, D.C).