Cajon Pass is nestled between mountains and hosts high pressure gas lines, high voltage power lines, rail lines, fiber optics, water lines and Interstate 15. The San Andreas Fault runs roughly side to side across the center of this image. Credit: USGS, public domain

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Cajon Pass is nestled between mountains and hosts high pressure gas lines, high voltage power lines, rail lines, fiber optics, water lines and Interstate 15. The San Andreas Fault runs roughly side to side across the center of this image. Credit: USGS, public domain

Cajon Pass is nestled between mountains and hosts high pressure gas lines, high voltage power lines, rail lines, fiber optics, water lines and Interstate 15. The San Andreas Fault runs roughly side to side across the center of this image. Credit: USGS, public domain

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