Geologic map and physiographic provinces of St. Croix, U.S. VI
By Caribbean-Florida Water Science Center (CFWSC)
2016 (approx.)

Detailed Description
Geologic map and physiographic provinces of St. Croix, U.S. Virgin Islands (modified from Renken and others, 2002; Whetten, 1966; and Gill 1989).
Sources/Usage
Public Domain.