Report upon United States geological surveys west of the one hundredth meridian, Volume I: Geographical report
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Geology topics
Publications and source records attributed to George Montague Wheeler.
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Through the following tables there are presented, in accessible form, such portions of the more important numerical results of this Survey, from the year 1873 to 1879, inclusive, as it has been found neeessar, to compute pari passu with the plottings made from the field notes, together with such additional determinations as may have been required in the construction of the final atlas sheets. The speed with which results were demanded and produced during the years that field observations were in progress, and the subsequent paucity in office assistance, have rendered it impossible to exhaust the subject under any one of the headings found in the contents. Such results, however, as would seem to be of the greatest general interest and usefulness have been collected in this volume, which is submitted to take a place among the miscellaneous publications of the Survey, wherein its importance will correspond in a measure to the number of positions, elevations, distances, &c. (of which there are many), not hitherto in print.
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The region examined during the seasons of 1878 and 1879 extends north to north latitude 37° 20, and embraces parts of North Central New Mexico, and South Central Colorado. It lies wholly east from the canon of the Rio Grande, includes the mountain area of the Spanish ranges to their southern termination, and takes in the eastern plains to west longitude 104° 7' 30". But of this region a strip between the Rio Grande and the mountains, lying south from north latitude 36° 40" was not visited; and the total area colored on the maps is not far from 10,000 square miles.
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Although investigations in Botany, governed in a measure by the sparsely settled condition of the regions visited, are but incidental to the systematic purpose of the Survey, which has for its main object the determination of data necessary for the construction of a detailed topographical map, yet it is believed that the material here presented, as the result of examination, by specialists, of large and complete collections, will have its value as a substantial contribution to the knowledge of the Botany of portions of the United States west of the 1OOth meridian and south of the 40th parallel.
I [George M. Wheeler] have the honor to submit the following report for the fiscal year ending June 30, 1878: At the close of the present field season parties of the survey will have been engaged in fourteen of the fifteen States and Territories, a part or all of which lie west of the 100th meridian of longitude; the remaining political division (Dakota) alone having been unvisited. The progress of the work since its commencement has been directed over connected areas, and in such manner that, at a minimum of time and expense, as large areas as practicable, pursuant to required methods, shall be topographically surveyed in detail, to the end that the War Department shall have, at as early a date as possible, a complete map of the entire region.
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I [G.M. Wheeler] have the honor to submit herewith a report, in two parts, upon the paleontological results arising from the collections and examinations made during the years 1871, 1872, 1873, 1874, and 1875, in connection with geographical explorations and surveys west of the one hundredth meridian, for publication as Volume IV of the reports authorized by acts of Congress approved June 23, 1874, and February 15, 1875.