Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. 1:100,000 Digital Raster Graphics for Virginia: Virginia, 2000

1996. U.S. Geological Survey. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

2. 1:250,000 Digital Raster Graphics for Virginia: Virginia, 2000

1996. A Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic or planimetric map including the collar information, georeferenced t...

3. 7.5 minute digital elevation models (DEM) for Virginia (30 meter): Virginia, 2000

1979. U.S. Geological Survey. Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard...

4. A New Map of Virginia, Maryland and the Improved Parts of Pennsylvania and New Jersey, 1719

1719. Map of Maryland, Virginia, and surrounding areas, 1719. 49 x 54 cm; 1 images.

5. America pars, Virginia dicta, 1590

1590. Map showing Virginia and surrounding areas, 1590. First map to show and name the Chesapeake Bay. 31 x 42 cm; 1 images; color.

6. Battle field of Young's Branch or Manassa Plains battle fought July 21, 1861 / relief survey and map by James L. Bowen, topographical engineer.

1861. Bowen, James L., Alexander, Samuel., and Warder & Catlett. Relief shown by hachures. Shows disposition of troops. Diagram showing shape and height of hills: "Scale of hills. Datum line, Young's Branch at th...

7. Birthplace of Washington United States Coast and Geodetic Survey ; from a survey by A. Lindenkohl, 1879.

9999. U.S. Coast and Geodetic Survey. and Lindenkohl, A. Title in lower right margin: Washington's birthplace. Relief shown by hachures. "Note. Location of Monument and other data added in 1897." "U.S.C. ...

8. Carte de la Virginia et du Maryland, 1757

1757. Map of Maryland and Virginia, 1757. 48 x 64 cm; 1 images.

9. [Culpeper County, Virginia] It was made from horseback surveys by the writer ... S. Alexander.

1862. Alexander, Samuel. and United States. Army. Corps of Engineers. Relief shown by hachures. 1 map : mounted on cloth ; 48 x 71 cm This map is in the public domain. Please attribute access and use of this digitized...

10. Digital Orthophoto (DOQQ - quarter-quadrangle): Virginia, 2000

1999. U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey. Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a ...

11. Environmental Sensitivity Index (ESI) Maps and Data - Virginia: United States, 2006

2006. National Oceanic and Atmospheric Administration (NOAA), National OceanService, Office of Response and Restoration, Hazardous Materials Response. This data set contains vector lines and polygons representing data used in the creation of the Environmental Sensitivity Index (ESI) for the Hudson...

12. High bridge and Farmville

9999. Weyss, J. E. Scale [1:20,750]; 1 map; 54 x 75 cm.

13. Loudon County Virginia by E. Hergesheimer.

1861. Hergesheimer, Edwin., Smith, Robert Pearsall, 1827-1898., and United States. War Department. Corps of Engineers. Relief shown by hachures. Oriented with North to upper left-hand corner. "Compiled under the direction of Lieut. Col. J.N. Macomb A.D.C. Chf. Topl....

14. [Map of part of northeastern Virginia] This map is the result of horseback surveys made by the writer and donor and other members.

1864. Alexander, Samuel., Schedler, J. (Joseph), and United States. Army. Corps of Engineers. Relief shown by contours. "Engraved by J. Schedler 120 Pearl St. N.York." Manuscript note reads "This map is the result of horseback surveys made b...

15. Map of the country occupied by the Federal and Confederate armies on the 8th. & 21st. July 1861 by Warder & Catlett, surveyors & publishers.

1861. Warder & Catlett. and Alexander, Samuel. Relief shown by hachures. Shows disposition and movement of troops at the First Battle of Bull Run. "Lith. of Hoyer & Ludwig. Richmond, Va." 1 map ...

16. Map of the states of Virginia and Maryland engraved & printed by Fenner Sears & Co.

1831. Hinton, Isaac Taylor, 1799-1847., Fenner, Sears & Co., and Simpkin, Marshall and Co. Relief shown by hachures. Inset: Plan of Washington and Georgetown. 1 map ; 24 x 38 cm This map is in the public domain. Please attribute access an...

17. National Agriculture Imagery Program (NAIP) for Virginia County Mosaics: Virginia, 2009

2009. USDA-FSA Aerial Photography Field Office. This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP acquires digital ortho imagery during the agricultura...

18. National Wetlands Inventory for Virginia: Virginia, 2009

1976. U.S. Fish and Wildlife Service. This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the conterminous United States. These data...

19. New and Accurate Map of Virginia and Maryland, 1752

1752. Map showing the states Maryland and Virginia, 1752. 33 x 23 cm; 1 images; color.

20. Nova Virginiae Tabula, 1635

1635. Map showing Virginia and surrounding areas, 1635. 35 x 46 cm; 1 images; color.