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Luna Leopold (1915-2006) is widely viewed as the foremost student of rivers of the 20th century. This volume presents a selection of informal essays written over the course of his long career. These essays complement his professional articles and books, and they illustrate how he became increasingly concerned with environmental degradation. Leopold argued forcefully that engineering solutions should be ethically framed as well as practical, and with that in mind, in 1969 he drafted the first environmental impact statement. He was awarded the National Medal of Science in 1991 Illus.

This volume presents a description of the river (a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river), including its shape, size, organization, and action, along with a consistent theory that explains much of the observed character of channels.

Data on various hydrologic parameters are given to facilitate discerning the effects of future urbanization.

A pioneering study of landform development under processes associated with running water, this text encompasses both field and laboratory research. Topics include the landscapes of mountains, rivers, and seacoasts; studies of weathering, climate, and erosion; and coverage of geochronology, drainage patterns, channel changes, and the evolution of hill slopes. 1964 edition.