Abert, J. W. & Peck, W. G.; Report of Lieut. J. W. Abert, of His Examination of New Mexico, in the Years 1846-'47,  [with] Map of the Territory of New Mexico. Senate Executive Document No. 23, 30th Congress, First Session, Washington, 1848.  Octavo, pp. 132, illustrated with 24 lithographic plates and large folding map of New Mexico territory in rear pocket.
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The work is complete and in a modern quarter calf over marbled boards with the original gilt spine label preserved. The binding is tight and pristine, the text, plates and map are exceptionally clean with only a small embossed stamp on first title page and a few very minor spots on a couple of plates. In very good condition.

This is the separate rare first  printing of Abert's important report and map of New Mexico with all plates and map present (his report was printed later the same year with Emory's "Notes of a Military Reconnaisance" where it is most commonly found). Only 2,000 copies of Abert's first report were printed. The report is written in travelogue style and provides much useful information about the Indians of New Mexico and their language, local customs and living conditions, and other observations. J. W. Bailey, professor of chemistry, mineralogy, and geology at the US Military Academy contribute a section regarding the importance of minerals and fossils. Based on fossils, Bailey distinquished between the coals of the Raton Basin and those found in the eastern United States. This is the earliest such reference distinguishing the younger stratigraphic age for coal deposits of the Rocky Mountain region. Abert's lithographic views of New Mexico scenery, towns, Indians, and other subjects are considered to be the best and most important yet published to that time. Abert's large folding Map of the Territory of New Mexico (20 x 26 inches) was an important contribution to southwestern cartography and contains much name and topographic detail (major towns including Taos, Santa Fe, Alburquerque, etc., many minor localities, sites of ruins, etc.). It centers around the Rio Grande and illustrates that portion of New Mexico extending from the Colorado border on the north to about Socorro on the south, and approximately Grants on the west to an area east of Las Vegas, NM on the east.