Map[Photographic negative transparency of U.S. Geological Survey topographic map of the District of Columbia and adjacent ... Date of situation of the original map is approximate. Relief shown by contours and spot heights. Title devised by cataloger. Publication data taken from donor's adhesive label at lower right. Gift; Gary...
- Contributor: Geological Survey (U.S.) - North Arrow Ltd - North, Gary W.
- Date: 1915