The University of Colorado Denver scanned 2 sites in the Canyons of the Ancients National Monument -Parallel Wall House and Saddlehorn Hamlet using a Leica Scan Station 2 Scanner.

Craig Childs is lost. In a labyrinth of canyons in the American Southwest where virtually nothing else is alive- barely any vegetation, few signs of wildlife, scant traces of any human precursors in this landscape-Childs and his friend Dirk undertake a fortnight's journey. With as much food and gear as they can carry, and little else but their wiles to help them traverse the inhospitable, unmappable terrain, the two men assume the life-or-death challenge...

This study was conducted at the request of Colorado National Monument (Project PMIS 197716) and the Bureau of Land Management (L14AC000). Results include mist netting efforts, radiotelemetry findings, and acoustic recordings, collected from May through August of 2014, 2015, and 2016. In addition, results for museum and database searches of historic specimens and records for the study area are provided.

"Over the canyon, the sun scalds the air, and bakes the desert mud to stone. But under the shade of the canyon hides another world, where bighorn sheep bound from rock to rock on the hillside, roadrunners make their nests in sturdy cacti, and banded geckos tuck themselves into the shelter of the sand. This book takes readers on a journey through the wonders concealed in the curves of the canyon, and all the secret life hidden in its arms"--

Major Powell wrote this account of his 1869 expedition, and his narrative is one of the great clascis of exploration, as thrilling as the feat itself.

The Grand Canyon in Arizona is an amazing natural feature. It is so majestic and immense, yet it was carved simply: by water. Kids will be amazed to learn that, given enough time and enough flow, water can carve deeply into the Earth. This book will look at how water erodes stone, and how different stones wear away at different rates. The results are some of nature s most beautiful landforms.

"Simple text and full-color photos explain how canyons form and why they are an important landform"--Provided by publisher.

A year after the death of her mother in a restaurant shooting, Nora is left struggling to stay alive when a climbing trip with her father goes terribly wrong.