Map showing the lines of communication between southern Colorado and northern New Mexico / Compiled by 1st Lieut. E.H. Ruffner, engineers, Chief Engineer, Department of the Missouri ; drawn by Ado Hunnius, Jan. 1st 1876.
From Colorado (In 5 layers) Depicts: 1876 Last modified 7 months ago. Unrectified.
A low resolution preview is shown below.