The present investigation intends to diminish the over dilution of the mineral with respect to the clearing in the blasting process which will lead to a better selectivity of the mineral since the granulometry of the blasting obtained tends to be adequate due to the fact that the fragmentation presents an average of 15 cms. . which allows us to choose the mineral dismantling to form our rumas, complying with the monthly program required and / or programmed, justifying the method of cutting and upward filling used for this vein due to the geo-mechanical conditions of the same, since it is presented in type of bad terrain, not only did the selectivity improve, but it also led to a reduction in costs in the sustaining process since there is less damage to the rock, with the lower power explosive having control over the height mining, having more time to do a better job favoring quality work...