Biological Soil Crusts
NPS Photo by N. Herbert
Cryptogamic crusts retard erosion by wind and water, help retain soil moisture during dry periods, slow evaporation rates, and enhance seedling establishment. These living crusts are extremely fragile and one footprint can set back development for decades.
For more information on Biological Soil Crusts visit this USGS Soilcrust website.
Did You Know?
The view from Toroweap Overlook (North Rim), 3,000 vertical feet above the Colorado River, is breathtaking; the sheer drop, dramatic! Renowned Lava Falls Rapid, just downriver, can be seen and heard easily from the overlook. This remote area is located on the northwest rim of the Grand Canyon. More...