Grand Canyon has one of the most extensive records of geologic history, representing over 2 billion years of sedimentation, mountain building and erosion.
One writer described it as the Divine Abyss.
March 2014: South Rim; Spring break camping trip
Grand Canyon has one of the most extensive records of geologic history, representing over 2 billion years of sedimentation, mountain building and erosion.
One writer described it as the Divine Abyss.
March 2014: South Rim; Spring break camping trip