Map of the U.S. Virgin Islands in the Caribbean
Map of the USVI in the Caribbean, including St. Thomas, St. John, and St. Croix.
CIA World Fact Book
On St. Thomas, Charlotte Amalie is the "big city" of the U.S. Virgin Islands, while St. John is the quiet island with several exclusive resorts and St. Croix falls somewhere in between the two.
Google Map of the U.S. Virgin Islands