Each June the world's toughest mountain bike race is held. Covering over 2,650 miles with over 170,000 feet of climbing, the race course follows dirt roads, muddy tracks and snow covered mountains along the Continental Divide from Banff Canada to the Mexican border at Antelope Wells New Mexico. This is the Tour Divide, a unique race where the clock never stops and outside support is forbidden. It is the rider and their bike against the elements-and the internal demons. The Cordillera is the journal of the Tour Divide. 2016 saw the first ever sub-14 day ride. There was an unprecedented number of animal encounters. The weather was torrid. The Cordillera Volume 8 shares the stories of the successes, and challenges, of the 2016 Tour Divide. It shares the experiences of athletes plumbing the depths of endurance, in the transformational experience that is the Tour Divide.

Includes the Proceedings of the Royal geographical society, formerly pub. separately.

Artifacts linked to projectile technologies traditionally have provided the foundations for time-space systematics and cultural-historic frameworks in archaeological research having to do with foragers. With the shift in archae ological research objectives to processual interpretations, projectile technolo gies continue to receive marked attention, but with an emphasis on the implications of variability in such areas as design, function, and material as they relate to the broader questions of human adaptation. The reason that this particular domain of foraging technology persists as an important focus of research, I think, comes in three parts. A projectile technology was a crucial part of most foragers' strategies for survival, it was functionally spe cific, and it generally was fabricated from durable materials likely to be detected archaeologically. Being fundamental to meat acquisition and the principal source of calo ries, projectile technologies were typically afforded greater time-investment, formal modification, and elaboration of attributes than others. Moreover, such technologies tend to display greater standardization because of con straints on size, morphology, and weight that are inherent to the delivery system. The elaboration of attributes and standardization of form gives pro jectile technologies time-and space-sensitivity that is greater than most other foraging technologies. And such sensitivity is immensely valuable in archae ological research.

Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole