Known informally as the Charlie Brown Outcrop, this distinctive road-cut is a popular stop for geologists heading to Death Valley, California. Located along the Charlie Brown Highway (CA 178), northeast of the small town of Shoshone, this road-cut exposes the spectacular vitrophyre (black band of volcanic glass) within the Miocene Resting Spring Pass Tuff.
Nopah Range Wilderness contains a good chunk of the Nopah Range in its eastern portion and a piece of the Resting Spring Range in its west. These ranges embody dramatic geologic landscapes, separated by the north-south Chicago Valley, a flat expanse with numerous winding, light-colored washes.