A somewhat technical overview of the multiple rock types that make up Mount Moran. The narrator discusses the unique geology at length while offering ...
Yosemite National Park: Since the glaciers retreated around 15,000 years ago, rock fall has been the major force of change in Yosemite Valley. Geologi...
Canyonlands National Park: Biological soil crust is a living groundcover that forms the foundation of plant life in Canyonlands and the surrounding ar...
Canyonlands National Park: The geologic history of Canyonlands spans hundreds of millions of years. Join ranger Karen Henker for a brief tour of this ...
Canyonlands National Park: Throughout Canyonlands, naturally occurring sandstone basins called potholes form tiny ecosystems inhabited by a surprising...