Tufa built up steeply at the Lake Lahontan shelf edge, just like coral reefs.
Date 3/17/2011 1:00:41 Camera model iPhone 3GS Shutter speed 1/1599 Aperture f/2.8 Exposure Normal program Focal length 3.85mm Sensing One-chip color area Flash Off Metering Average ISO sensitivity 64 Latidue 40.176773˚ N Longitude 119.74411˚ W Altitude 1219.79 m Location Empire, Empire, Washoe, Nevada, United States