by John S. Pomeroy
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Map showing late 1977 debris avalanches ...
Map showing physical characteristics of ...
Preliminary bedrock geologic map of the ...
Slope movements in the Warren-Allegheny ...
Landslides in the Greater Pittsburgh reg...
Preliminary surficial geologic map, East...
Earth First! and the anti-roads movement
Proceedings of the 30th International Ge...
Ancient sea-margins
Green Growth and Travelism
Aquifer-system compaction and land subsi...
The Vegetarian Myth