City of Boulder Watershed south from Niwot Ridge above Lake Albion, September 2013. A mudslide can be seen starting from the cliffs in the center of the photo.
City of Boulder watershed
Post date:
Oct 10, 2013
Photo courtesy of:
Craig Skeie 
City of Boulder Watershed south from Niwot Ridge above Lake Albion, September 2013. A mudslide can be seen starting from the cliffs in the center of the photo.