As of March 2021, Part 25 ("General Maps") of THE GRAND CANON has been superseded by the separately available CARTOBIBLIOGRAPHY OF THE GRAND CANYON AND LOWER COLORADO RIVER REGIONS OF THE UNITED STATES AND MEXICO. The Cartobibliography is now in its 2nd Edition (2022).
See the "VOLUME 2: CARTOBIBLIOGRAPHY" tab at the top of this page for details, and to download that document; or use this URL:
Part 25 is retained in THE GRAND CANON Volume 1 in order to provide an introduction to the Cartobibliography within the context of the overall bibliography.
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THE CARTOBIBLIOGRAPHY is Volume 2 of The Grand Canon : A Worldwide Bibliography of the Grand Canyon and Lower Colorado River Regions in the United States and Mexico. It itemizes and often describes details on maps produced worldwide from the 16th to 21st centuries. Many citations for historical maps before the 20th century are chorographical; attention is on part of the map rather than the whole, in order to describe how the Grand Canyon and lower Colorado River regions are portrayed. Thus the principal purpose of the map may not be mentioned, such as when a map is of wider interest to cartographic historians for content that is unrelated to the physical geography of the Southwest (for example, a map that delineates newly drawn political boundaries in areas that are outside the geographical area of interest here). In some instances, remarks correct or amplify the work of earlier bibliographers. All forms of maps are listed: general, geologic and physiographic, and certain specialized maps; to which is added a complete guide to all scales of topographic map quadrangles in the greater Grand Canyon–lower Colorado River regions in the U.S. and Mexico, produced by the U.S. Geological Survey and Mexico’s Instituto Nacional de Estadística y Geografía (as also used by the Servicio Geológico Mexicano). The kinds of maps cited here vary. Many are standalone productions, while others are included in atlases or accompany reports of explorations, some of them as large fold-outs, others as maps loosely laid in or even grouped in separate covers. Maps that appear as illustrations within books and periodicals are not generally considered. Neither are manuscript maps considered, although a few significant ones are cited; those that are of seminal importance in the history of the Grand Canyon and the Southwest. Notes added to these citations provide more detailed information that describe relationships between features of physical geography, for the benefit of users who may thus determine that a map should be more closely examined, or it may suggest to them that a map is not of interest to work at hand. The Cartobibliography divides maps into two major groups: 16th–18th centuries, and 19th–21st centuries; and there is a separate, consolidated chronological list of these maps. The 16th to 18th centuries in this region recorded human interactions that focused on the lower Colorado River, by international parties with interests in the region. Only manuscript maps ventured to embrace the area that now is known to be the Grand Canyon. The 19th century saw the first sponsored explorers in three centuries spanning the region, eventually delineating the Colorado River and its tributaries correctly, discovering again the Grand Canyon. And the 20th century witnessed an explosion of general and scientific maps of the region, including topographic mapping at large scales. More specifically detailed bibliographical products and statistical surveys can be derived from this Cartobibliography.