Rancagua in the context of Rancagua conurbation

The Central Valley (Spanish: Valle Central), Intermediate Depression, or Longitudinal Valley is the depression running north to south between the Chilean Coastal Range and the Andes Mountains. The Chilean Central Valley extends from the border with Peru to Puerto Montt in southern Chile, with a notable interruption at Norte Chico (27°20'–33°00' S). South of Puerto Montt, the valley has a continuation as a series of marine basins up to the isthmus of Ofqui. Some of Chile's most populous cities lie within the valley including Santiago, Temuco, Rancagua, Talca and Chillán.

Graneros is a commune and city in central Chile, located in the O’Higgins Region, Cachapoal Province. It covers an area of 113 km and has a population of 35,938 inhabitants (2024 Census), including 17,613 men and 18,325 women. It is situated 74.36 km from Santiago and 11.97 km from Rancagua. Together with the communes of Mostazal and Codegua, Graneros forms part of the Northern Cone area of the O’Higgins Region, serving as its main urban center and a hub for agro-industrial, commercial, and service development.