The Rio Puerco is a river located in northwestern New Mexico, USA. It is a tributary of the Rio Grande and flows through a semi-arid region, primarily in Bernalillo County. The river is approximately 100 miles long and is known for its seasonal flow, which can vary significantly depending on rainfall. The Rio Puerco basin is characterized by its unique geological formations and diverse ecosystems. It supports various wildlife and plant species, making it an important area for conservation. The river also plays a role in local agriculture and water supply for nearby communities.