From the Mouth of Trap Creek to the Santa Fe Crossing; from Explorations and Surveys made under the direction of the Hon. Jefferson Davis Secretary of War by Capt. J.W. Gunnison. Topl. Engrs. assisted by Capt. E.G. Beckwith 3d Artillery. R.H. Kern Topographer in the field. Map made under the supervision of Capt. E.G. Beckwith 3d Artillery by F.W. Egloffstein, Topographer for the Route. 1855. Explorations and surveys for a railroad route from the Mississippi River to the Pacific Ocean. War Department. Route near the 38th & 39th Parallels. Map No. 2. Engr. by Selmar Siebert.

Uncolored map stretching from Uniontown (Kansas) and along the Santa Fe trail to Ft. Atkinson on the Arkansas River.
This Quarto issue of the report is the House issue, except for volume XI which is the Senate issue. W. Heckrotte has an unusual copy of the Warren U.S. map found in this report. It is dissected on linen and is an earlier version of the map published with the Quarto report. It has 40 authorities vs. 42 in the quarto issue map, shorter note to left of authorities, lots of plate differences, especially: nothing in Owyhee area, differences in N.M., Calif., etc. Looks like someone asked for the map before it was finished -see the Lack of ocean lines in the top half south of Gray's Harbor. In 13 volumes. Bound in full leather with "Explorations and Surveys for a Railroad to the Pacific Ocean" and the volume number on the spine in gold.
WC 262.