Lieut. [G]eo. Mea[d]e, U.S. Topographical Engineers.
Map of the Fortifications at Monterrey. 1846. From Rice University http://hdl.handle.net/1911/35760.
Image taken from larger work: "The scouting expeditions of McCulloch's Texas Rangers: Or, The summer and fall campaign of the Army of the United States in Mexico, 1846" http://hdl.handle.net/1911/22027