Description Sand Tufa of Mono Lake. From a nearby sign: 'Sand tufa forms where calcium-rich spring water reacts with Mono Lake's carbonate-rich water. If a spring percolates through sandy lake bottom, the sand becomes a part of the solid tufa. When the lake level drops, the surrounding sand is blown or washed away, exposing these intricate and fragile shapes. '
Edie Howe, Yosemite National Park Member Since April 2007 Artist Statement I live and work in Yosemite National Park. In my off time I am a landscape photographer in the Sierra Nevada region of California.