The congressional district, highlighted in red, overlayed with other congressional districts, county boundaries, and municipality-equivalent places, as well as major roads, railways, water areas, and area landmarks (inc. parks) in Washington metropolitan area, with an inset for Maryland as a whole. Shapefiles from the United States Census Bureau and the Maryland Department of Transportation State Highway Administration (MDOT SHA), converted with Mapshaper (Mercator projection) and Inkscape.
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