Rocks: page 1, page 2, page 3, page 4
Crossbedded Sandstone #1 Cracks in River Mud
Crossbedding in sandbar Ripples Preserved in Shale
Crossbedded Sandstone #2 Ripples in Hakatai Shale
Crossbedded Sandstone #3 Cracks Preserved in Hakatai Shale
Ripples in Mud Havasu Falls


Rocks: page 1, page 2, page 3, page 4

Photography by Dr. Sharon Johnson
drsharonjohnson@comcast.net