The objective of this study was to economically valuate the commercial species of a slightly uneven low-hill natural forest (BCbl) located in the Cochiquinas river basin, district of Pebas, province of Mariscal Ramón Castilla, Loreto; Peru. All tree indivduals with BDH?MCD of commercial forest especies included in PC 01 of 251,20 ha , belonging to the forest concession 16-LOR-MAR/COM-MAD-2016-049, were recorded and then determined the floristic composition and the volume of standing lumber. A total of 288 tree individuals included in nine forest species and seven botanical families were recorded, representing a density of 1,15 ind/ha, Myristicaceae is the most representative family with two forest species: O. glycicarpa and V. caducifolia, with a total of 121 registered tree individuals. O. glycicarpa contains the highest number of individuals of 0,28 ind/ha and C. pentandra the lowest ...