Jeff
Marshall’s Research
MOUNTAINS & DESERTS
OTHER RESEARH TOPICS:
Tectonics
& Earthquakes | Watersheds & Rivers |
Coastlines
& Beaches
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Mt Baldy and San
Antonio Canyon, San Gabriel Mountains, California |
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Field Sites & Projects:
San Gabriel
Mountains, California
Anza-Borrego
Desert, California
Santa Cruz
Mountains, California
Cordillera
Central, Costa Rica
Cordillera
de Talamanca, Costa Rica
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