UNLIMITED Audiobooks and eBooks

Over 40,000 books & works on all major devices

Get ALL YOU CAN for FREE for 30 days!

The Geologic Story of Canyonlands National Park

S. W. Lohman

Begin Download
0.00
No ratings yet

How does All You Can Books work?

All You Can Books gives you UNLIMITED access to over 40,000 Audiobooks, eBooks, and Foreign Language courses. Download as many audiobooks, ebooks, language audio courses, and language e-workbooks as you want during the FREE trial and it's all yours to keep even if you cancel during the FREE trial. The service works on any major device including computers, smartphones, music players, e-readers, and tablets. You can try the service for FREE for 30 days then it's just $19.99 per month after that. So for the price everyone else charges for just 1 book, we offer you UNLIMITED audio books, e-books and language courses to download and enjoy as you please. No restrictions.

Book Excerpt: 
. . .fig. 5), one of the best preserved and most intriguing petroglyphs, or rock inscriptions, in the canyon lands. Many of the older cliff faces of the Wingate and Navajo Sandstones are darkened or blackened by desert varnish, a natural pigment of iron and manganese oxides. The prehistoric inhabitants of the canyon country learned that effective and enduring designs could be created simply by chiseling through the thin dark layer to reveal the buff or tan sandstone beneath. According to Jesse D. Jennings (letter of Mar. 20, 1962, to Utah Div. Parks and Recreation),

There are at least three periods of workmanship visible on the rock. The last is quite recent since it shows men mounted on horses [brought in by Spanish explorers]. These are probably less than 200 years old and are probably the work of Ute tribesmen. The others cannot be identified with any specific cultural group, although the earliest may be as much as one thousand years old and are probably the work . . . Read More

"Love your service - thanks so much for what you do!"
- Customer Cathryn Mazer



"I did not realize that you would have so many audio books I would enjoy"
- Customer Sharon Morrison



"For all my fellow Audio Book & E-Book regulars:
This is about as close to nirvana as I have found!"
- Twitter post from ‏@bobbyekat