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Betsy R. Armstrong
Identifiers
Open Library
OL841108A
Top Subjects
Colorado (1)
San Juan County (1)
Avalanches -- Colorado -- San Juan County -- History (1)
Avalanches -- Colorado -- Ouray County -- Atlases (1)
Avalanches -- North America. (1)
Books by Betsy R. Armstrong
Total count: 3
Century of struggle against snow
a history of avalanche hazard in San Juan County, Colorado : a contribution to the United States Unesco man and the biosphere (MAB) program project 6, study of the impact of human activities on mountain and tundra ecosystems
Institute of Arctic and Alpine Research, University of Colorado
1976-01-01
Avalanche atlas, Ouray County, Colorado
prepared for the Ouray County Commissioners and the Ouray County Planning Commission
INSTAAR Snow and Avalanche Project, Institute of Arctic and Alpine Research, University of Colorado
1977-01-01
The Avalanche Book
1st edition
Fulcrum
1986-01-01
