Search Results - Armstrong, Betsy R.

Avalanche atlas, Ouray County, Colorado / by Armstrong, Betsy R.

Online Access

Snow avalanches in Colorado : the what's, where's and why's / by Armstrong, Betsy R.

The avalanche book / by Armstrong, Betsy R.

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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 proje... by Armstrong, Betsy R.

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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... by Armstrong, Betsy R.

Online Access

Map of snow avalanche areas and known accident sites in the Telluride region, San Miguel County, Colorado / by Armstrong, Betsy R.

Avalanche atlas, Ouray County, Colorado / by Armstrong, Betsy R.

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Avalanche hazard in Ouray County, Colorado, 1877-1976 / by Armstrong, Betsy R.

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Avalanche hazard in Ouray County, Colorado, 1877-1976 / by Armstrong, Betsy R.

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Denver's natural history museum : a history / by Johnson, Kirk R., Armstrong, Betsy R., Colwell, Chip (John Stephen), 1975-, Kruger, Frances Alley, Haglund, Kristine A., Krell, Frank-T

Other Authors: “…Armstrong, Betsy R.…”
Online Access, Part 1 (Preface - Chapter 3)
Online Access, Part 2 (Chapters 4-6)
Online Access, Part 3 (Chapters 7-end)

Evaluation and prediction of avalanche hazard, San Juan Mountains, Colorado : final report / by Armstrong, Richard L. (Richard Ley), 1941-2023

Other Authors: “…Armstrong, Betsy R.…”
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The snowy torrents : avalanche accidents in the United States, 1972-79 / by Williams, Knox

Other Authors: “…Armstrong, Betsy R.…”
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Avalanche atlas, San Juan County prepared for San Juan County Commissioners and in cooperation with the San Juan County Land Use Planner / by Miller, Leonard, 1938-

Other Authors: “…Armstrong, Betsy R.…”
Online Access

Avalanche atlas, San Juan County : prepared for San Juan County Commissioners and in cooperation with the San Juan County Land Use Planner / by Miller, Leonard, 1938-

Other Authors: “…Armstrong, Betsy R.…”