Papers in this title were selected from presentations from an April 2005 workshop sponsored by the U.S. Geological Survey Earth Surface Dynamics Program, the U.S. Geological Survey National Cooperative Geologic Mapping Program, and the Smithsonian Institution. Papers are divided into two broad topics of the configuration, areal extent, and temporal development of the chain of interconnected lakes that emptied into Death Valley during periods of the Pleistocene, and the late Cenozoic history of drainage integration in the lower Colorado River region. Papers are occasionally illustrated in both color and black-and-white; the publication contains no index.

A statement from the world's leading geomorphologists on the state of, and potential changes to, the environment.

The Mojave Desert has a rich natural history. Despite being sandwiched between the larger Great Basin and Sonoran Deserts, it has enough mountains, valleys, canyons, and playas for any eager explorer. Ancient and current waterways carve the bajadas and valley bottoms. This diverse topography gives rise to a multitude of habitats for plants and animals, many of which are found nowhere else in the world. A Natural History of the Mojave Desert explores how a combination of complex geology, varied geography, and changing climate has given rise to intriguing flora and fauna—including almost 3,000 plant species and about 380 terrestrial vertebrate animal species. Of these, one quarter of the plants and one sixth of the animals are endemic. The authors, who, combined, have spent more than six decades living in and observing the Mojave Desert, offer a scientifically insightful and personally observed understanding of the desert. They invite readers to understand how the Mojave Desert looks, sounds, feels, tastes, and smells. They prompt us to understand how humans have lived in this desert where scant vegetation and water have challenged humans, past and present. A Natural History of the Mojave Desert provides a lively and informed guide to understanding how life has adapted to the hidden riverbeds, huge salt flats, tiny wetlands, and windswept hills that characterize this iconic desert.

Covering a large swath of the American West, the Great Basin, centered in Nevada and including parts of California, Utah, and Oregon, is named for the unusual fact that none of its rivers or streams flow into the sea. This fascinating illustrated journey through deep time is the definitive environmental and human history of this beautiful and little traveled region, home to Death Valley, the Great Salt Lake, Lake Tahoe, and the Bonneville Salt Flats. Donald K. Grayson synthesizes what we now know about the past 25,000 years in the Great Basin—its climate, lakes, glaciers, plants, animals, and peoples—based on information gleaned from the region’s exquisite natural archives in such repositories as lake cores, packrat middens, tree rings, and archaeological sites. A perfect guide for students, scholars, travelers, and general readers alike, the book weaves together history, archaeology, botany, geology, biogeography, and other disciplines into one compelling panorama across a truly unique American landscape.

Inland sand dunes are widespread in North America and are found from the North Slope of Alaska to the Sonoran Desert in northern Mexico and from the Delmarva Peninsula in the east to Southern California in the west. In this edited book, we highlight recent research on areas of inland dunes that span a range from those that are actively accumulating in current conditions of climate and sediment supply to those that were formed in past conditions and are now degraded relict systems. This book will be of interest to researchers and scholars of physical geography, geomorphology, environmental sciences, and earth sciences. Contributions include detailed analyses of individual active dune systems at White Sands, New Mexico; Great Sand Dunes, Colorado; and the Laurentian Great Lakes; as well as the vegetation-stabilized dunes of the Nebraska Sand Hills and the Colorado Plateau. Additional chapters discuss the widespread partially vegetated dune systems of the central and southern Great Plains; the relict dunes of the Atlantic Coastal Plain of the eastern USA; and active and stabilized dunes of the Colorado Plateau and the southwestern deserts of the USA and northern Mexico.