We are really pleased with this new edition of Puerto Rico. We spent part of August, touring the island and geo-referencing its many highways. The island is bigger and more densely road-networked than we thought, so we'll have to complete the job on our next visit, but the roads are now much more precisely shown accurately than was possible before satellite imagery.The map also shows updated inset maps of San Juan, Ponce, Mayaguez, Aguadilla, and Arecibo. Puerto Rico is part of the United States, so has all the benefits, but is internally self-governing. With this edition we are including a map of the other US colonial territory, the US Virgin Islands. The Danish West Indies was purchased from Denmark in 1917 and is an integral part of the USA, with all its benefits, but is, like Puerto Rico, neither fish nor fowl. It is internally self-governing and a great retirement location for Americans, but it retains much of its Danish heritage. The map includes insets of Charlotte Amalie, Frederiksted, Cruz Bay, and Christiansted.