This gem is one of the passages I found while exploring the slot canyon described on pages 112-113 of my 320-page guidebook, "Photographing California Vol. 2 - South". May your explorations and discoveries be as spectacular as ours!
The main exposure was four seconds at f/2.8, ISO 3200, 16mm focal length. Three exposures one stop apart were adjucted in Adobe Lightroom and combined in Photomatix HDR software.
I've always encouraged my children Nicole and Thomas to explore, to discover, to question, to learn. Bringing them along for my photographic explorations of the American West was part of that process.