Provenance
Handout created by Joy Branlund, Southwestern Illinois College, using Google Maps as well as data from Force, Eric R., 1991, Geology of Titanium-Mineral Deposits. GSA Special Paper 259 and Force, Eric R. and Rich, Fredrick J., 1989, Geologic Evolution of Trail Ridge Eolian Heavy-Mineral Sand and Underlying Peat, Northern Florida. U. S. Geological Survey Professional Paper 1499.

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