And, close up.
These photos were taken April 8, 2011 at the Montezuma Well near Camp Verde Arizona. They grow in only one small spot at this site. Prehistoric farmers dug a mile long irrigation canal that is about 3 feet deep that runs from the well to farm land they used. The water coming through this canal is a constant 75 degrees, and that part of why the ferns grow here.
Here is the irrigation canal, the ferns, and walls of rock.
The photos don't do the scene justice, it was quiet, beautiful, almost spiritual.
Montezuma Well is in a desert area, amazing what a little warm water and some shade will grow.