Its direction is mainly to the north and later to the northwest .
Q'illumayu originates in or near the lake Wachuwaq'asa ( Huacoajasa ) which lies in the east of the Sacsamarca District .
Q'illumayu 's direction is mainly to the north and later to the northwest .
Q'illumayu originates in or near the lake Wachuwaq'asa ( Huacoajasa ) which lies in the east of the Sacsamarca District .