Federal geologists blame the latest collapse of Highway 1 in Big Sur on a relatively common rockfall caused by weather, waves and gravity that eventually cracked the steep cliffside beneath the roadway, according to a new analysis by the U.S. Geological Survey. The good news is that researchers didn't see a larger landslide at work, which would suggest greater instability in the surrounding area. The bad news is that it's an ongoing challenge to predict where and when another rockfall could... Read this story
