Keywords: boulders creek forest forest service forestservice koosah falls koosahfalls natural resources naturalresources oregon plants river stream stream bank streambank trees us forest service usforestservice water waterfall watershed willamette nf willamettenf united states of america unitedstatesofamerica willamette willamette national forest willamettenationalforest national forests nationalforests national forest nationalforest pacific northwest pacificnorthwest showcase landscape outdoor serene watercourse Mackenzie River above Koosah Falls-Willamette National Forest Mackenzie River above Koosah Falls-Willamette National Forest |