All photos in this book were taken over an 8 day period in March of 2009 by Spencer Brown. Selected images have been featured on the News Hour with Jim Lehrer, the Discovery Channel, Canadian Geographic Magazine and numerous smaller publications. Images were made with a modified Nikon D200, a Nikon FE , Nikon F100 and SB800 Speedlights. The author was self funded with additional logistical support made possible through grants from the National Science Foundation. © 2010 Spencer Brown.