SIMON FRASER / SCIENCE PHOTO LIBRARY SIMON FRASER / SCIENCE PHOTO LIBRARY
Butte temoin. Silhouettes of typical buttes at dawn. A butte temoin (usually simply called butte) is an erosion feature of large sedimentary rock plains. It is formed when a resistive cap- rock is found. The sedimentary rocks around the cap-rock are more easily eroded, leaving a tower- like edifice standing after millions of years. The slopes at the bottom of the butte are composed of debris from subsequent weathering. These are the "Mitten Buttes" in Monument Valley, Arizona.
Model release not required. Property release not required.