Quintana Roo, officially the Free and Sovereign State of Quintana Roo, is one of the 31 states which, with Mexico City, constitute the 32 federal entities of Mexico. It is divided into 11 municipalities, and its capital city is Chetumal.
In 1881 the Corwin carried a scientific detachment including John Muir, Irving C. Rosse, M.D., and Edward W. Nelson, and in the course of the search for the Jeannette landed parties on Herald and Wrangel Islands in the Chukchi Sea.