An investigation of what are the eco systemic services in the province of Sumapaz in the municipality of Pasca, Argentine side is underway This project is part of a research carried out by the University of Cundinamarca in terms of conducting a study for financial purposes and in the same way ecological with the purpose of establishing a clear concept that are the eco systemic services and the benefits that they provide to human beings, based on a descriptive and similar research of a documentary type where they allow establish definitions and classifications of ecosystem services, different theories are adopted of the importance or relevance that has been established to them with the passage of time and as a purpose seeks to specify the monetary value of a specific one taken as an example the water sources one of them the old river joan which supplies a certain amount of water to and others located in the village of La Argentina, based on this it is desired to quantify this supply in the different activities that are developed thanks to this ecosystem service, seeking to realize or give a quantifiable value to it, establish the importance of the ecosystem services for the human being, in accordance with the definition of what is an ecosystem service and the importance or benefits that it provides to the human beingSede Fusagasugá