In April of 2006, a rock slide began on Highway 140, one of a few routes route into Yosemite National Park. From the articles I found on the slide, it sounds like it began in late April and lasted through May. No one was injured or hurt but businesses along the highway suffered economic losses when tourists had to find other ways into the park.
While researching further, I found a blog post by Gary Hayes who runs the blog Geotripper. He also experienced a rockslide in April 2011 while traveling on this same highway.
I'd love to be the one putting a hazard map together for this highway!
December 31, 2004
May 24, 2009
You can find it yourself on Google Earth using these coords: 37°39'23.41"N 119°54'07.64"W
Check back next week to see the shrinking sea!