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1. Maryland County Boundary Files, 1860-1880

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The features represent the county boundaries in Maryland from the years 1860-1880. The Historical United States County Boundary Files 1790 - 1999 (...

2. Maryland County Boundary FIles,, 1890-1910

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. This shapefile contains county boundaries for Maryland for the years 1980-1910. The Historical United States County Boundary Files 1790 - 1999 (or...

3. New York Gas Service Territories, 1999

1999. NYS Department of Public Service. Gas Service Territories is a polygon theme representing the territories of gas utility service in New York State. Attribute information includes t...

4. United States County Boundary Files, 1790

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1790 contains ArcView shapefile format U.S. county boundary files for 1790. Files include count...

5. United States County Boundary Files, 1800

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1800 contains ArcView shapefile format U.S. county boundary files for 1800. Files include county...

6. United States County Boundary Files, 1810

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1810 contains ArcView shapefile format U.S. county boundary files for 1810. Files include county...

7. United States County Boundary Files, 1820

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1820 contains ArcView shapefile format U.S. county boundary files for 1820. Files include county...

8. United States County Boundary Files, 1830

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1830 contains ArcView shapefile format U.S. county boundary files for 1830. Files include county...

9. United States County Boundary Files, 1840

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1840 contains ArcView shapefile format U.S. county boundary files for 1840. Files include county...

10. United States County Boundary Files, 1850

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1850 contains ArcView shapefile format U.S. county boundary files for 1850. Files include county...

11. United States County Boundary Files, 1860

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1860 contains ArcView shapefile format U.S. county boundary files for 1860. Files include county...

12. United States County Boundary Files, 1870

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1870 contains ArcView shapefile format U.S. county boundary files for 1870. Files include county...

13. United States County Boundary Files, 1880

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1880 contains ArcView shapefile format U.S. county boundary files for 1880. Files include county...

14. United States County Boundary Files, 1890

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1890 contains ArcView shapefile format U.S. county boundary files for 1890. Files include county...

15. United States County Boundary Files, 1900

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1900 contains ArcView shapefile format U.S. county boundary files for 1900. Files include county...

16. United States County Boundary Files, 1910

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1910 contains ArcView shapefile format U.S. county boundary files for 1910. Files include county...

17. United States County Boundary Files, 1920

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1920 contains ArcView shapefile format U.S. county boundary files for 1920. Files include county...

18. United States County Boundary Files, 1930

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1930 contains ArcView shapefile format U.S. county boundary files for 1930. Files include county...

19. United States County Boundary Files, 1940

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1940 contains ArcView shapefile format U.S. county boundary files for 1940. Files include county...

20. United States County Boundary Files, 1950

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1950 contains ArcView shapefile format U.S. county boundary files for 1950. Files include county...

21. United States County Boundary Files, 1960

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1960 contains ArcView shapefile format U.S. county boundary files for 1960. Files include county...

22. United States County Boundary Files, 1970

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1970 contains ArcView shapefile format U.S. county boundary files for 1970. Files include county...

23. United States County Boundary Files, 1980

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1980 contains ArcView shapefile format U.S. county boundary files for 1980. Files include county...

24. United States County Boundary Files, 1990

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1990 contains ArcView shapefile format U.S. county boundary files for 1990. Files include county...

25. United States County Boundary Files, 1999

1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The Historical United States County Boundary Files 1999 contains ArcView shapefile format U.S. county boundary files for 1999. Files include county...

26. World Wildlife Fund Ecoregions, 2000

1999. World Wildlife Fund and Environmental Systems Research Institute, Inc. (ESRI). World Wildlife Fund Ecoregions represents global terrestrial and freshwater ecoregions defined as relatively large areas of land or water in the wo... Environmental Systems Research Institute, Inc. (ESRI).