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 P... View More...
Focusing on mountain ranges that are relatively unfamiliar to most geologists, this work expands our view of tectonics beyond a standardized textbook approach and illustrates both the extraordinary variety of mountain ranges over the world through time and many of the basic similarities they display. Originally published in 1987. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while prese... View More...
