Colorado Rocks

During parts of July, August, and September 1951, a reconnaissance was conducted in parts of Colorado, Wyoming, Utah, and Idaho in search of new deposits of uranium-bearing carbonaceous rocks. One significant uranium occurrence was found, the Fall Creek deposit, Bonneville County, Idaho. Several additional localities were discovered that contain uranium in concentrations many times that normally found in carbonaceous rocks.

"To discover the geologic novelties of the Centennial State, all that is required is a good map, a sense of adventure, and Colorado Rocks, a guide to 50 of the most compelling geologic sites in Colorado. The well-chosen destinations span the state's geologic history from Precambrian rocks of the Black Canyon to the modern shifting landscape of the Great Sand Dunes. Many of these sites are on every geologist's bucket list. The Great Unconformity, a famous geologic feature tucked away in remote locations in other western states, pops up at seven sites and in many cases is not even the site's main focus. The K-Pg boundary that marks the asteroid impact that ended the reign of the dinosaurs is also here, as are insects exquisitely preserved at Florissant Fossil Beds, the pure white marble used in the Lincoln Memorial, mysterious Unaweep Canyon that lacks a river, and colorful mounds of silicious sinter at Pagosa Springs. Rocks are more readily accessible in Colorado than anywhere else in North America because some of the continent's biggest rivers-the Colorado, Rio Grande, Arkansas, and Platte-claim the towering peaks as their headwaters and cut deep canyons through the ancient rocks. In the 1800s prospectors found an abundance of precious metals in the mountains. Their camps soon became towns, and narrow wagon roads became major highways that now permit easy access to Colorado's fascinating geology. With beautiful photographs and informative figures and maps, this guidebook will help you select a destination and head for the door"--

Through the sage advice of one of the world's foremost female climbers and the lens of an internationally acclaimed photographer, women learn that climbing is more fun than dangerous, that overcoming fear can boost self-esteem, and that the fitness benefits for women are tremendous. Most women learn climbing from men, but the sport is different fora woman, both physically and psychologically—and it is empowering for women to learn about climbing from “girls” who've been on the rocks themselves. The numerous photos in this full-color guide do wonders to clearly explain the various techniques, equipment, and styles of climbing for women. Further bringing the sport to life, author Katie Brown presents her interviews with numerous female climbers—from a young girl to a sixty-something professional climber—to learn what the sport has done for them.

The geology, distribution, production, and mining development of deposits of chromite, titaniferous iron ore, rutile, talc, asbestos, magnesite, sodium-rich feldspar, corundum, and serpentine.