Coastal Maine (fall '07)

Great Smoky Mountains
National Park (spring '07)

West Virginia (fall '06)

Hawaii (spring '06)

Northern Vermont (fall '05)

Central coast of Maine (fall '04)

Permian reefs, TX and NM (spring '04)

Sudbury, Ontario, Canada (fall '03)

Death Valley, CA and NV (spring '03)

Catskill "Delta" of New York (fall '02)

Costa Rica (spring '02)

New Mexico Volcano Fields (May '01)

Barrier Islands (spring '01)

Natural history and environmental issues of Cuba (May '00)

From Vegas to the Valleys fields (spring '00)

Pennsylvania (fall '00)

Appalachian Orogen Field Trip - WV and VA (fall '99)