Roger Cameron Creel
Arctic Alaska

→ 1 month
→ Quaternary permafrost
→ Kotzebue, Fairbanks, Utqiagvik
Hawaii

→ 3 weeks
→ Last Interglacial carbonates
→ Molokai, Oahu, Kawaii
Death Valley

→ 1 week
→ Phanerozoic stratigraphy

Turks & Caicos

→ 3 weeks
→ Last Interglacial carbonates
→ West Caicos, Providenciales, North Caicos, Middle Caicos
Bahamas

→ 1 month
→ Last Interglacial carbonates
→ Eleuthera, Long Cay, Crooked Island

Western United States

→ 2 months
→ Paleozoic carbonates; Mesozoic stratigraphy
→ Basin and Range; Utah
Maritime Canada

→ 2 weeks
→ Paleozoic carbonates
→ Anticosti Island