Roswell is a city in, and the seat of, Chaves County in the U.S. state of New Mexico, the county forms the entirety of the Roswell micropolitan area. As of the 2010 census it had a population of 48,411, making it the fifth-largest city in New Mexico. It is home of New Mexico Military Institute (NMMI), founded in 1891. The city is also the location of an Eastern New Mexico University campus. Bitter Lake National Wildlife Refuge is located a few miles northeast of the city on the Pecos River. Bottomless Lakes State Park is located 12 mi east of Roswell on US 380.