By J.H. Clark, U.S. Commissioner, drawn by J.E. Weyss, circa 1860. The map features the survey lines between Texas and New Mexico. It is an interesting historical curiosity because the map was not published at the conclusion of the survey because an agreement between the U.S. and the Texas Surveyor Commissioners was interrupted by the outbreak of the Civil War. In 1902 it was belatedly included in a Geological Survey Bulletin by Marcus Baker. Extremely detailed. A table lists 29 “points which can be easily found on the Earth's Surface."

References: Wheat [TMW] #1022.

Condition: B

Folding, as issued. Toned along some fold lines. Two short splits along fold lines near title block.