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Meet Billy Barr, the 'snow watcher' of Colorado

For more than 40 years, Billy Barr has been living alone up in the Rocky Mountains in Colorado. To fight the boredom of the long cold winters, he started collecting information about snow. When scientists found out about his unique archive, they got really excited.

Image: Billy Barr sitting outside his shack in the Rocky Mountains in 1977
Credit: Courtesy of Billy Barr

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Duration:

6 minutes