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Basemap DC Tile Layer
The DC Basemap web service provides a reference map for the District of Columbia. The basemap utilizes the most current planimetric and reference data available. The service is provided by the Office of the Chief Technology Officer.
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Basemap of DC in Dark Gray
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The Dark Gray DC Basemap provides a reference map for the District of Columbia projected in Web Mercator. Access the ArcGIS Rest endpoint. The basemap utilizes the most current planimetric and reference data available and represents the real world with foundation map layers derived from base data collection done in 2023.The service is provided by the Office of the Chief Technology Officer.
Curbs 2019
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DC Quadrants
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Snapbase
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Fence, Wall and Miscellaneous (Structure Lines)
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Structure Lines. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC and the surrounding states of MD and VA.
L'Enfant Plan Street Boundaries
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L'Enfant Plan of Washington. The dataset contains polygons representing the L'Enfant Plan historic district, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies. This district was identified from public records, including published maps and the National Register nomination form. It was created by buffering along the planimetric street centerline at specified distances, as referenced in the 1803 King Plats, ranging from 70 to 160 feet.
State of Washington DC - 2021
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Tile Index for 2017
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District Government Agency List Lookup
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Open Data DC
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,On this site the District of Columbia government shares opportunities to explore hundreds of datasets through direct downloads, interactive applications and developer resources through APIs. Engage with the District through government open data.,,