In 1923, America paid close attention, via special radio broadcasts, newspaper headlines, and cover stories in popular magazines, as a government party descended the Colorado to survey Grand Canyon. Fifty years after John Wesley Powell's journey, the canyon still had an aura of mystery and extreme danger. At one point, the party was thought lost in a flood.

Something important besides adventure was going on. Led by Claude Birdseye and including colorful characters such as early river-runner Emery Kolb, popular writer Lewis Freeman, and hydraulic engineer Eugene La Rue, the expedition not only made the first accurate survey of the river gorge but sought to decide the canyon's fate. The primary goal was to determine the best places to dam the Grand. With Boulder Dam not yet built, the USGS, especially La Rue, contested with the Bureau of Reclamation over how best to develop the Colorado River. The survey party played a major role in what was known and thought about Grand Canyon.

The authors weave a narrative from the party's firsthand accounts and frame it with a thorough history of water politics and development and the Colorado River. The recommended dams were not built, but the survey both provided base data that stood the test of time and helped define Grand Canyon in the popular imagination.

The Colorado River and its deeply entrenched canyons create a lengthy barrier to travel in the interior West. Here and there, ancient Indian foot trails descend canyon walls and find access to the river, but one of the few places between California and Nevada where wheeled vehicles can approach it is at the mouth of the Pahreah River, between Glen Canyon and the river's steep drop toward Grand Canyon. Here, from the mid-19th until well into the 20th century, Lee's Ferry was a primary link between Utah and Arizona. Mormons trying to reach potential Indian converts and new lands for colonization to the south first developed the site. John D. Lee and parts of his family, seeking an inconspicuous spot after the Mountain Meadows massacre, first took up residence at what they called Lonely Dell. In subsequent decades, many interesting and important western characters passed through this topographical and historical funnel, from John Wesley Powell to Buffalo Bill. As river exploration and adventure increased, the place became as important to those using the river-surveyors, miners, river runners-as to folks crossing it. In recognition of its importance, Lee's Ferry has been partially restored as a historic site in the national park system.

P. T. Reilly, himself a legend on the river as boatman and chronicler, wrote the detailed and colorful history this place demanded, focusing on stories of the hodgepodge of people it attracted. He died before he finished reworking his massive narrative into book form, but Robert H. Webb, author of Grand Canyon: A Century of Change, completed that job and selected rare historical photos from the Reilly collection at Northern Arizona University to illustrate it. An epilogue by Richard Quartaroli provides a biographical sketch of P. T. Reilly.

In The Mojave Desert, thirty-eight scientists who are all specialists in desert ecology address the threats to the Mojave, as well as the potential for natural recovery and active restoration. The contributing authors discuss the desert from several perspectives: regional threats such as expanding human populations, climate change, atmospheric nitrogen deposition, and invasive plants; the impact of roads in a desert ecosystem; soils and plant communities; shrinking aquifers; and the monitoring and sustainability of this fragile ecosystem. Finally, they discuss the importance of long-term data and the ways scientists and resource managers can interact to enhance understanding of the processes of change in the Mojave Desert and to advance the preservation and restoration of its precious resources.The Mojave Desert offers the fruits of extensive research in a number of disciplines and a sound assessment of the current state and possible future of one of the world's major deserts. As human intrusion and climate change increasingly threaten the Mojave's ecosystem, studies like this are essential in helping scientists, land managers, and the general public understand what is at risk and what can be done to preserve this austere and hauntingly beautiful region.