Chama, Costilla County, ColoradoChama is an unincorporated community and U.S. Post Office located in Costilla County, Colorado, United States.HistoryChama is located in the Rio Culebra valley which is part of the Sangre de Cristo Land Grant was awarded to the family of Carlos Beaubien in 1843 by the government of New Mexico. The town of Chama was established by settlers from Chamita, New Mexico, in 1860. The Chama, Colorado, post office opened on May 3, 1907. The Chama school was taken down between the years of 1999 and 2001.DescriptionMost of Chama's houses are made of adobe. Many of them are very old. There are also a lot of rocks and "chamiso" sagebrush in Chama. The community lies at the foot of the Culebra Ranch.