The boundary markers of the original District of Columbia are the 40 milestones that marked the four lines forming the boundaries between the states of Maryland and Virginia and the square of 100 square miles (259 km 2) of federal territory that became the District of Columbia in 1801 (see: Founding of the District of Columbia).

Open in Map Viewer. Modify Map. Sign In. Help ... Search Print Measure Contents Washington DC Boundary - DC Boundary: Topographic . Trust Center . Legal . Contact Esri . Report Abuse . Contact Us. Zoom to + Transparency + Set Visibility Range + Rename + Move up + Move down + Copy + Show in Legend ...

2013年7月4日 · The dataset is a polygon representing the District of Columbia boundary, 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. The boundary was identified from public records and heads-up digitized using a combination of the 1995 ...

This data is used for the planning and management of Washington, D.C. by local government agencies.

2020年7月30日 · Washington, D.C. has a rich and unique history. As the capital of the United States, it is not an official state, yet it as a large population and houses the center of political activity in the country. This ArcGIS story will show the changes to the border of the region throughout history and the historical effect of these changes.

Our Office makes a wide variety of maps available for the District of Columbia including: • PropertyQuest.dc.gov, a popular tool that provides site-specific information for any location in the District • Additional interactive maps • A library of ready-to-use maps

2024年9月17日 · The dataset is a polygon representing the District of Columbia boundary, 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. The boundary was identified from public records and heads-up digitized using a combination of the 1995 ...

Maps of Washington DC area public geodata. Contribute to benbalter/dc-maps development by creating an account on GitHub.

The dataset is a polygon representing the District of Columbia boundary, created as part of the DC Geographic Information System (DC GIS) for the D.C....

The boundary was identified from public records and heads-up digitized using a combination of the 1995 orthophotographs, planimetric roads features, and the USGS digital raster graphic quad sheets, and 1999 planimetrics for the Potomac River boundary. The DC boundary is defined by cornerstones and the far Potomac riverbank.