In my previous post, Gary commented that the desert looked very green. This is one of the reasons why Big Bend is such a magnificent place (and this from somebody who thinks of Death Valley, the Mojave, the Colorado Plateau and the Great Basin among the most magnificent places in the U.S.). The Chihuahuan Desert is one of the
most biologically diverse arid regions in the entire world. Over the past quarter century I have visited Big Bend more times that I can remember, in winter (been snowed in in the high Chisos), spring, summer before the monsoon (June) and during the monsoon (July), and it is like visiting many different places in the same place. July can indeed be as green as this photo shows - saturation of this image is as natural as I could make it. I have seen xerophytic ferns growing next to prickly pear cacti. In Big Bend the biomes of the East and West of the continent merge, and you find oak and maple forests intermingling with junipers and pinyon pines, with Ponderosa pines and Arizona cypresses at higher elevations (ice age relics), and the ever present agaves and yuccas. It is also one of the places in the U.S. where you have the greatest chance of coming face to face with a mountain lion along a remote trail (I have not yet been that lucky, but, being a cat lover, I am truly looking forward to the experience - kitty, kitty!). The geology is equally varied - the southernmost termination of the Appalachian-Ouachita mountain system crops out in the extreme north of Big Bend, near Persimmon Gap (fascinating 400 million year old very deep marine sediments with weird fossils, but you have to know where to find them), then you have the massive Cretaceous (about 100 million years) limestone beds deposited in the ancestral Gulf of Mexico, into which the Rio Grande has carved its great canyons, and to cap it all off the Tertiary (about 35 million years) Trans Pecos volcanism which, among many others, gave rise to a humongous volcano that probably looked like Mt Kilimanajaro back then and that has now been eroded down and makes up the Chisos Mountains, shown in this image from a seldom shown perspective. One of my Ph.D. students did his dissertaion work on a smaller volcano a bit to the North, a place called Bones Spring.
Did I mention that I love Big Bend?
Comments
8 commentsA wonderful view of the Chihuahuan Desert --nice soft lighting and you show the many habitat types found in this region. I especially like the lighting in this scene--very tranquil..................................Jim