1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, and 2009. National Energy Information Center (U.S.). This point shapefile represents natural gas market hubs in the United States for 1996-2009. A hub is a physical transfer point for natural gas wher... National Energy Information Center (U.S.).
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2014. National Energy Information Center (U.S.). This line shapefile represents major hydrocarbon gas liquid (HGL) pipelines in the United States as of November 2014. HGL refers to both the natura... National Energy Information Center (U.S.).
2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile includes ferrous metal processing plants in the United States. The data represent commodities covered by the Minerals Informat... National Atlas of the United States.
7914. Alaska
1925. Brooks, Alfred H. (Alfred Hulse), 1871-1924. In lower margin of each map: "Copyright, 1925, by the American Geographical Society of New York, the Geographical Review, Vol XV, No. 1, 1925, Plat... American Geographical Society (New York).
1869. Dall, William Healey, 1845-1927. Relief shown by hachures and spot heights. Depths shown by soundings.; "Coast line soundings &c. from U. S. Coast Survey."; "The Yukon River, range... N.Y. Lithographing, Engraving & Printing Co (New York).
1886. U.S. Coast and Geodetic Survey. Depth shown by soundings and isolines.; "No. 708."; "Printed Jan. 7, 1887. Issued from chart room 2-24-1888." 53 x 83 centimeters Scale 1:40,000; S... U.S. Coast and Geodetic Survey (Washington, D.C).
7917. Map of Alaska
1904. Barnard, E. C. (Edward Chester), 1863-1921. Shows Alaska with areas of coal bearing rocks in red and coal seams in green.; Includes legend.; Relief shown by contours and spot heights.; Inset:... The Survey (Washington, D.C).
7918. Map of Alaska
1927. Geological Survey (U.S.). Alternate title: Alaska, map A.; Relief shown by spot heights. 42 x 60 centimeters Scale 1:5,000,000 approximately 80 miles to 1 inch General Map C... Dept. of the Interior, U.S. Geological Survey (Washington, D.C).
7919. Map of Alaska
1925. Geological Survey (U.S.). Relief shown by spot heights.; Prime meridian: Greenwich.; Inset: [Aleutian and Andreanof Islands]. 42 x 59 centimeters Scale 1:5,000,000 approxima... The Survey (Washington, D.C).
7920. Map of Alaska
1898. Hendges, M. Relief shown by hachures and spot heights.; Shows land offices and reservations, transportation routes, mineral deposits, reported gold regions, an... Dept. of the Interior, General Land Office (Washington, D.C).