Part of Carroll County, Maryland
Shows western two-thirds of the county including roads, railroads, towns, taverns, schools, and post offices. Manuscript, pen-and-ink on tracing linen. "Drawn from S. J. Martenet's map by John de la Camp [and from] photographs by G. Mathiot and D. Hinkle by permission of Prof. A. D. Bache, Supt. U.S. Coast Survey." Available also through the Library of Congress Web site as a raster image. ...
Macomb, J. N. (John N.) - Martenet, Simon J. - De La Camp, J. (John) - United States. Army. Corps of Topographical Engineers - Macomb, J. N.