acequia mezquerina in lanjarón and tree with red and green leaves in autumn

acequia agricultural alpujarra andalusia arab autumn biodiversity chestnut cultivation ditches environmentalism excursions fields filtrations fire forest granada green irrigation lanjarasup3 lanjarón leaf leaves mezquerina mountain mountains national natural nature nevada park red rivers route saw seepage sidewalk sierra slopes sources spain springs tello terraces thaw track trails tree trees unevenness valley vegetation waterproofing waters