The coloration of this species of rattlesnake has evolved to match the light pink sandstone of the Colorado Plateau of northeastern Arizona. The camouflage is so effective that this one almost went unnoticed, even though it was coiled on the patio of a State Park visitor center! Moments after I took this photo with a telephoto lens, the ranger arrived to relocate this particular park resident to a not-so-central location.
Date: October 10, 2006
Time: 2:30 p.m. MST
Location: Homolovi Ruins State Park, Arizona
Camera: Kodak Z650 Zoom Digital
ISO setting: 125
Focal length: 63 mm
Aperture: f/3.7
Exposure time: 1/400 second