Condition - Very Good The item shows wear from consistent use, but it remains in good condition and functions properly. Item may arrive with damaged packaging or be repackaged. It may be marked, have identifying markings on it, or have minor cosmetic damage. It may also be missing some parts/accessories or bundled items.
Timberline: Mountain and Arctic Forest Frontiers
Timberline--where the trees end--is a biological boundary visible throughout North America to even the casual traveler. Where highways or hiking trails ascend to upper timberlines (ranging from below 2000-foot elevations in Alaska to over 11,000 feet in California), visitors see patchy forest and meadows giving way to stunted trees and finally to mere shrub-like trees and tundra. This book describes what timberlines are and why they exist, and what human uses have been made of the timberline environment. It surveys tree species and conditions of individual North American timberlines--in the Pacific Coast, Great Basin, Southwest, and Mexican mountains; in the Rockies and Northern Appalachians; and in the Arctic--with reference to timberlines worldwide. Originally published in 1984, this is a classic in Western natural history now made available again to climbers, hikers, and other enthusiasts.