WARREN, GOUVERNEUR KEMBLE. 'MAP OF THE TERRITORY OF THE UNITED STATES FROM THE MISSISSIPPI TO THE PACIFIC OCEAN ORDERED BY THE HON. JEFF'N DAVIS, SECRETARY OF WAR TO ACCOMPANY THE REPORTS OF THE EXPLORATIONS FOR A RAILROAD ROUTE … COMPILED FROM AUTHORIZED EXPLORATIONS AND OTHER RELIABLE DATA.' [WASHINGTON, D.C., 1858] — 'MAP OF ROUTES FOR A PACIFIC RAILROAD COMPILED TO ACCOMPANY THE REPORT OF THE HON. JEFFERSON DAVIS, SEC. OF WAR IN OFFICE OF P.R.R. SURVEYS 1855.' NEW YORK: LITH. OF BIEN, 1855

Together two maps, the first engraved (46 1/4 x 47 1/2 in.; 1174 x 1207 mm), the second lithographed (20 x 23 in.; 510 x 585 mm) and dissected into 8 sections mounted on canvas. Each map handsomely framed with UVIII Plexiglass.

Together two maps, the first engraved (46 1/4 x 47 1/2 in.; 1174 x 1207 mm), the second lithographed (20 x 23 in.; 510 x 585 mm) and dissected into 8 sections mounted on canvas. Each map handsomely framed with UVIII Plexiglass.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

Two important maps of the Transmississippi West by G. J. Warren, including an annotated proof copy of his seminal 'Map of the Territory of the United States from the Mississippi to the Pacific Ocean.' William H. Goetzmann describes this map as the "most important achievement of the [Pacific Railroad Surveys]. … An event comparable in importance to the publication of Lewis and Clark’s first reports, Warren’s map marked the culmination of six decades of effort to comprehend the outlines of western geography. Though there were still vast areas marked unexplored on its surface and not all of the features were correctly laid down, Warren’s map, nevertheless, was a landmark in American cartography …. Compared to Warren’s map, all previous works of a general nature on the trans-Mississippi West are mere sketches …. The map was of fundamental importance in the progress of geographical knowledge in the United States" ('Army Exploration in the American West 1803–1863,' pp. 333–337).This copy is a proof before publication with two autograph revisions by Warren and his signed annotation, "Proof sheet from an unfinished engraving | Feb. 22. 1858 | G. K. Warren | Sr. Top Engr." In one revision, Warren has deleted the names of Indian peoples believed to be present in the Colorado and Green rivers area of the Southwest and instead marked that area "unexplored." In the other, he has extended the Salmon River southward.

The second map is an early precursor to Warren's great map, described by him in a Note appearing under the title as "a hurried compilation of all the authentic surveys and is designed to exhibit the relations of the different routes to each other; the topography represents only those great divides which form summits on the profiles of the routes."