• Sunset Crater Volcano National Monument

    Sunset Crater Volcano

    National Monument Arizona

Suggested Reading

The San Francisco Volcanic Field, Arizona
Link to a U.S. Geological Survey fact sheet explaining volcanic activity in northern Arizona. Color photos.

Did You Know?

Sunset Crater penstemon in bloom

The Sunset Crater penstemon (Penstemon clutei) is found only on cinder deposits within the San Francisco Volcanic Field, including Sunset Crater Volcano National Monument, in northern Arizona.