In the 1930s, workers using explosives and machinery excavated a 13-mile tunnel beneath Mt. San Jacinto to bring Colorado River water to Southern California. The Metropolitan Water District recently ...
Thousands of feet below the snowy summit of Mt. San Jacinto, a formidable feat of engineering and grit makes life as we know it in Southern California possible. The 13-mile-long San Jacinto Tunnel was ...
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