2004.
Polygons identifying map sections (collections of 16 sheets) for Index Map. Each section is further divided into 4 quadrants, NW, NE, SW and ...
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2005. This dataset represents the Land Use delineations in Washington, DC 2005.
2007. The LWSD layer identifies the water service area that is supplied with water from the Loudoun County Sanitation Authority (LCSA). It identifies bo...
2006. This dataset represents the locations of Landmark Structures in Washington, DC 2006.
2002. This dataset contains polygons representing the location of landmarks in Washington, DC 2002.
2007. This feature class contains wastewater lines corresponding information that falls within the boundary of Loudoun County.
2007. This feature class contains wastewater structures corresponding information that falls within the boundary of Loudoun County.
2007. This line feature contains water mains corresponding information that falls within the boundary of Loudoun County.
3. This dataset represents the external boundaries of the original L'Enfant Plan in Washington, DC 2003
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44130. LES TROIS POSITIONS DE LA SPHERE veiies en Convexe lóeil étant posé á distance infinie du Zenith
Moulart-Sanson, Pierre, d. 1730. Includes bibliographical references (p. xv-xvi) and indexes. Six hemispherical representations of the earth. The middle map on the right hand page ...