. Water Supply and Irrigation Papers of the United States Geological Survey. empts to control it the Colorado continued to pour its watersthrough Alamo and New rivers into Salton Sea until the early fall of1906, when it was finally shut off by the Southern Pacific broke again, however, on December 7, but was closed about twomonths later. The rise of Salton Sea began in November, 1904, and continuedthroughout 1905 and 1906 and until February, 1907. In the summerof 1905 it endangered the Southern Pacific tracks to such an extentas to require frequent shifting to higher ground by means


. Water Supply and Irrigation Papers of the United States Geological Survey. empts to control it the Colorado continued to pour its watersthrough Alamo and New rivers into Salton Sea until the early fall of1906, when it was finally shut off by the Southern Pacific broke again, however, on December 7, but was closed about twomonths later. The rise of Salton Sea began in November, 1904, and continuedthroughout 1905 and 1906 and until February, 1907. In the summerof 1905 it endangered the Southern Pacific tracks to such an extentas to require frequent shifting to higher ground by means of shoo-fly or spur tracks, which served temporarily until the latter part ofthe year when a high line about 40 miles in length was completed onthe 200-foot contour below sea level. This line is still in use, thoughduring the latter part of 1906 and the early part of 1907, the lowerportion of it was seriously damaged by the action of waves. For usein the future, if required, another line has been located and graded U. S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 251 PLATE III. A. SALTON SEA NEAR SALTON STATION,SEA LEVEL, SOUTHERN PACIFIC RAILROAD,AUGUST 29, 1906. 205 FEET BELOW


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