File:Contributions in geographical exploration (1920) (14781011442).jpg

Identifier: contributionsing00ohiouoft (find matches)
Title: Contributions in geographical exploration
Year: 1920 (1920s)
Authors: Ohio State University
Subjects:
Publisher: Columbus
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: MSN

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Photograph by J. W. Shipley THE TRAIL THROUGH THE TALL GRASS ALONG THE WEST BANK OF KATMAI RIVER. Representative of conditions in the fourth zone where the trees were killed but the ashfall was so light that the grass quickly recovered.
Text Appearing After Image:
Photograph by R. P. Griggs HORSETAIL WAIST DEEP IN THE DEAD FOREST OF UKAK VALLEY The ashfall was here about two feet deep, sufficient to smother the grass and all other geophilous plants except Equisetum arvense, which covers the hillsides for miles in unparalleled luxuriance. Jan., 1919J Effects of the Eruption on Vegetation 179 only 8 to 12 inches,- while at Katmai it was 40 feet on thecrater rim and 15 feet at a distance of five miles. The fiat floodplain of Katmai Valley with its forest of large trees is the phicewhich should have shown the most definite evidence of hottornadoes. But this was swept by a terrific flood which so toreup the dead forest as to cover up any lesser damage which mayhave preceded it. Nevertheless it must be noted that the trees arestill standing everywhere throughout the Valley, except in areasswept bare by the flood. On the other hand, while violent hotblasts like those that devastated St. Pierre have not beenknown to retain their power for great distanc

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