Granitic Gneiss
Granitic gneiss with foliation defined by bands of black biotite mica and white plagioclase feldspar is exposed near Cherokee. At 1 billion years old they are the oldest rocks in the park.
Granitic gneiss with foliation defined by bands of black biotite mica and white plagioclase feldspar is exposed near Cherokee. At 1 billion years old they are the oldest rocks in the park.