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Saint Thomas, Saint John, Tortola, and Virgin Gorda are the four main islands (front to back) in this east-looking view of the US Virgin Islands and British Virgin Islands. For this view, a nearly cloud-free Landsat image was draped over radar elevation data, and shading was added to enhance the topographic expression. Elevation is shown with 1.5x scaled vertical exaggeration. Coral reefs fringe the islands in many locations and appear as very light shades of blue. Tropical vegetation appears green, while developed areas appear in shades of brown and white. Image credit: NASA, JPL, and NIMA.