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In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here’s a look inside the engineering feat that carries Colorado River water to Southern California.
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Projects and Investigations
Read all of our coverage about how California is neglecting the climate threat posed by extreme heat.
A series of stories, videos and podcasts about the river’s decline, from the headwaters in the Rocky Mountains to the river’s dry delta in Mexico.
More investigations, in-depth analyses, series and trackers.