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Geology topics

Walter C. Mendenhall

Publications and source records attributed to Walter C. Mendenhall.

4 recordsLinked to original sources

Geology of the central Copper River region, Alaska

It is an interesting evidence of the prompt responsiveness of our governmental organization to popular needs that the year 1898, which saw the first rush of argonauts to Alaska as a result of the discovery of the Klondike in 1986, saw also several well-equipped Federal parties at work in the Territory, mapping its great waterways and mountain ranges, investigating the feasible means of transportation within it, laying out routes for future lines of communication, and studying the mineral resources and the plant and animal life. It is true that before that year, in which the general attention of the world was fixed upon our heretofore lightly regarded northern province, fur traders, adventurous travelers, and hardy prospectors had made little-heralded journeys through the interior, and that one or another of the governmental departments had had representatives on special errands within its borders, but the amount of private and public energy expended there in 1898 probably exceeded that of any ten previous years.

Alaska

The hydrology of San Bernardino Valley, California

The San Bernardino basin lies near the eastern end of the valley of southern California. Under the latter term is included that general lowland area which is definitely limited on the north by the San Gabriel and San Bernardino ranges and on the east by the latter range and the San Jacinto group, but whose southern boundary is irregular and difficult to define. In this direction there is an interdigitation of ridges and valleys as the Sierra Madre Range of San Diego County dies out toward the north. The more or less indefinite heights that represent its extension in this direction are separated by lowlands, which in turn are to be regarded as southwest lobes of the well-defined east-west valley that lies along the base of the San Gabriel Range.

California

Reconnaissances in the Cape Nome and Norton Bay regions, Alaska, in 1900

In consequence of the discovery and rapid development of the rich placer gold fields of Nome, Alaska, and the adjacent districts, a topographic survey and a geological investigation were demanded of the Geological Survey. The topographic work was put in charge of Mr. E. C. Barnard, whose map and report are embodied in this volume, while the geological work was entrusted to the writer.

Alaska