The Southern High Plains of northwestern Texas and eastern New Mexico are rich in Paleoindian archaeological sites, including such well-known ones as Clovis, Lubbock Lake, Plainview, and Midland. These sites have been extensively researched over decades, not only by archaeologists but also by geoscientists, whose studies of soils and stratigraphy have yielded important information about cultural chronology and paleoenvironments across the region.

In this book, Vance T. Holliday synthesizes the data from these earlier studies with his own recent research to offer the most current and comprehensive overview of the geoarchaeology of the Southern High Plains during the earliest human occupation. He delves into twenty sites in depth, integrating new and old data on site geomorphology, stratigraphy, soils, geochronology, and paleoenvironments. He also compares the Southern High Plains sites with other sites across the Great Plains, for a broader chronological and paleoenvironmental perspective.

With over ninety photographs, maps, cross sections, diagrams, and artifact drawings, this book will be essential reading for geoarchaeologists, archaeologists, and Quaternary geoscientists, as well as avocational archaeologists who take part in Paleoindian site study throughout the American West.

Winner, Wildlife Publications Award — Outstanding Book Category, The Wildlife Society, 2004
Texas Tech University President's Book Award, 2005

Shallow wetlands that occur primarily in semi-arid to arid environments, playas are keystone ecosystems in the western Great Plains of North America. Providing irreplaceable habitat for native plants and animals, including migratory birds, they are essential for the maintenance of biotic diversity throughout the region. Playas also serve to recharge the aquifer that supplies much of the water for the Plains states. At the same time, however, large-scale habitat changes have endangered playas across the Great Plains, making urgent the need to understand their ecology and implement effective conservation measures.

This book provides a state-of-the-art survey of all that is currently known about Great Plains playa ecology and conservation. Loren Smith synthesizes his own extensive research with other published studies to define playas and characterize their origin, development, flora, fauna, structure, function, and diversity. He also thoroughly explores the human relationship with playas from prehistoric times, when they served as campsites for the Clovis peoples, to today's threats to playa ecosystems from agricultural activities and global climate change. A blueprint for government agencies, private conservation groups, and concerned citizens to save these unique prairie ecosystems concludes this landmark study.