Skip to main content
U.S. flag

An official website of the United States government

Lake Mead - biotite-rich granite in the Newberry Mountains

By Geology and Ecology of National Parks
This is a photo of biotite-rich granite in the Newberry Mountains.
Original Thumbnail Medium

Detailed Description

Biotite-rich granite in the Newberry Mountains weathers into unusual shapes. This rock is along the Christmas Tree Pass Road near Grapevine Canyon.

Sources/Usage

Public Domain.