Serrano River is a river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 located in the Magallanes Region of Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

. Its main tributary is Grey River

Grey River (Chile)

Grey River is a river located in the Magallanes Region of Chile. The river originates as the outflow of Grey Lake and flows for 20 km before it merges with the Serrano River....

. The Serrano Glacier is an attraction on the river. The waters of the Serrano River eventually reach Seno Ultima Esperanza.

Area prehistory

Several significant elements of prehistory

Prehistory

Prehistory is the span of time before recorded history. Prehistory can refer to the period of human existence before the availability of those written records with which recorded history begins. More broadly, it refers to all the time preceding human existence and the invention of writing...

 have been found in the region. Notably not far from the southern area of the river's mouth is situated the Cueva del Milodon, a cave where evidence of prehistoric man's habitation has been found, illustrating arrival of humans approximately 10,000 BC.