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Author

Betsy R. Armstrong

3 books found

Cover of The Avalanche Book

The Avalanche Book

Betsy R. Armstrong, Knox Williams · First published 1986

Placeholder cover for Avalanche atlas, Ouray County, Colorado

Avalanche atlas, Ouray County, Colorado

Betsy R. Armstrong · First published 1977

Placeholder cover for Century of struggle against snow

Century of struggle against snow

Betsy R. Armstrong · First published 1976