The Bolsón de Mapimí is an endorheic, or internal drainage, basin in which no rivers or streams drain to the sea, but rather toward the center of the basin, often terminating in swamps and ephemeral l

The Nazas River is a river located in northern Mexico, in the states of Coahuila and Durango. It is part of the endorheic Bolsón de Mapimí. It is only 560 kilometres long, but irrigates an area of 71,