Configuration of the bedrock surface of the District of Columbia and vicinity
By: This report embodies subsurface data of interest to engineers and builders compiled from 1890 to 1940.
Publisher: U.S. Govt. Print. Off.
Published: 1950
Place of publication: Washington
Language: eng
Number of pages: 42
Subjects: Petrology -- Washington (D.C.); Physical geography -- Washington (D.C.); Borings -- Washington (D.C.)