Geology

This study examines human interactions with the Rio Grande from prehistoric time to the present day and explores what possibilities remain for the desert river.

Formed by massive volcanic eruptions over a million years ago, the Valles Caldera offers scientists unprecedented opportunities for studying its geologic wonders, and now as a national preserve, it offers the public a unique outdoor experience.

This comprehensive survey of the fossil record of New Mexico catalogs the plants and animals of the area for the past 500 million years from Precambrian time through the Pleistocene Era.

Modern Navajo tribal government originated in 1923 solely to approve oil leases. This ethnohistory tracks the major changes brought to the Navajo people in the six decades following the discovery and exploitation of oil and gas on tribal lands.

Written with the general reader in mind, this is the updated edition of the classic on the geology of the red rock and canyon country of the Fours Corners region of Utah, Colorado, Arizona, and New Mexico.

Moving beyond the preservationist/utilitarian dichotomy, these essays reveal the complexity of Muir's contribution, stressing the anthropomorphic, aesthetic, and recreational bases of his values. The insights of the historians, literary critics, philosophers, and scientists presented here provide readers with a greater appreciation for Muir's multidimensional personality and his contributions to the preservation movement.

In these four essays, which were presented as the 1992 Calvin P. Horn Lectures in Western History and Culture, Donald Worster incisively discusses the role of the natural environment in the making of the West--and often in its unmaking and remaking.