@mastersthesis {443, title = {An Aid to Help Park Naturalists to Acquaint Visitors with the Subalpine-Alpine Ecotone of Wesern North America}, volume = {MF}, year = {1967}, school = {University of Montana}, abstract = {This paper attempts to survey timberlines of western North America in a manner primarily designed to serve public interpreters of natural history, such as park naturalists. Hopefully, this broad discussion of the timeberlines will also be of interest to biologists and some members of the public. Much of the discussions is based upon personal observation of timeberlines...(no abstract provided, passage taken from introduction p.2)}, keywords = {Forestry}, author = {Arno, Stephan F.} }