Part of the city of Washington shewing the heights of the present surface of the ground from Pennsylvania Avenue to New Jersey Avenue below the Capitol Hill /

Shows some block numbers.

Plan of the Washington Canal : no. I /

Relief shown by shading. Depths shown by soundings.

Plan of the town of Alexandria, D.C. with the environs : exhibiting the outlet of the Alexandria Canal, the shipping channel, wharves, Hunting Cr. &c. /

Relief shown by hachures. Depths shown by contours.

Olympic National Park, Washington /

Relief shown by shading and spot heights.