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MOUNT RAINIER NATURE NOTES
Vol. IX October, 1931 No. 10


Glacial Recession

The annual measurement of the recession of the Nisqually Glacier was made, as usual, on October 1st. It was found that this great river of ice receeded, during the period of October 1, 1930 to October 1, 1931, a total of 49 feet. Although the recorded recession appears to be less than in previous years it does not tell a true story. The glacier has now melted back to a wide face and considerable more ice must melt away to produce the same horizontal recession of former years. It was also noted that the face of the glacier now lies at a much greater angle than in previous years. It is possible, then that although the horizontal recession is less than the average, that as much or more ice has melted away as in previous years.

1857-1885. . . .760 feet 1923-1924. . . .83 feet
1885-1892. . . .140 feet 1924-1925. . . .73 feet
1892-1918. . . .1310 feet* 1925-1926. . . .86 feet
1918-1919. . . .59 feet 1926-1927. . . .43 feet
1919-1920. . . .46 feet 1927-1928. . . .89 feet
1920-1921. . . .106 feet 1928-1929. . . .52 feet
1921-1922. . . .67 feet 1929-1930. . . .118 feet
1922-1923. . . .44 feet 1930-1931. . . .49 feet

*Annual measurements were first begun at this time. Previous recessional data secured from reliable historical accounts.

Mount Rainier

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12-Jun-2001