The surface exploration carried out during 1998, whose results are added those obtained in 1994, they have allowed to gather an information that leads to a first evaluation of the carboniferous resources present in the Sectors of El Hoyo-Quilcace, El Vergel and Yeguas-Limoncito belonging to the Carboniferous area of The Tambo-Patia. According to the concepts, classification approaches and dispositions of the System of Classification of coal Resources and Reserves of ECOCARBON, they were calculated and they ordered in categories the volumes of coal. The total figures of the basic reserves and resources, calculated in the entirety of the referred sectors, ascend to 1.967.061 tons in the category of measures reserves; 5.965.533 tons in the category of indicates reserves; 12.268.418 tons in the category of inferred reserves. 4.415.939 tons in the category of measured resources; 13.099.071 tons in the category of indicates resources; 18.455.711 tons in the category of inferred resources. The heating power in humid base free of mineral matters varies on the average between 6.588 and 7.354 calories. The content of ashy in dry base varies on the average between 8.12 and 18.04%. The content in total sulfur in dry base varies on the average between 0.84 and 2.32%.