Hydrology – 47 HYDROLOGIC AND CHEMICAL DATA

TABLE 7.-Altitude of water surface in Crater Lake, 1878-1963-Continued
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I Altitude is excess above 6,100 feet. Most observations were made and furnished by U.S. National Park Service. Continuous records of stage are available from September 14, 1961, to September 30, 1963, and beyond. Some readings made in periods 1913-17, 1926-28, 1935, 1940-42, and 1954-63 are not included in the listing.

2 Water surface reported nearly 6 feet below watermark (assumed to be same watermark later found to be at 6,180.5 ft).

3 Based on lowest part of painted name on rock wall near boat landing; water surface may have been lower but not higher.

4 From newspaper report (S. T. Harding, written commun., 1959).

5 Uncertain; based on memory of observer in 1913.

6 Seasonal high watermark.

 

TABLE 8. Estimated outflow from Paulina Lake I
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