• Black Canyon of the Gunnison National Park

    Black Canyon Of The Gunnison

    National Park Colorado

6: Additional Resources

Geologic Time, Online Edition by William L. Newman

This USGS online publication provides a thorough introduction to relative verses, absolute dating and the developmental history of the geologic time scale.

Fossils, Rocks and Time, Lucy E. Edwards and John Pojeta, Jr.

In this USGS online publication, learn the important role that fossils play in shaping the geologic time scale.

Did You Know?

Fellows

Torrence & Fellows were the first explorers to successfully navigate the Black Canyon, hiking and swimming with the assistance of rubber air mattresses.