gravel mining tonyladson
norman, d. k., c. j. cederholm and w. s. lingley (1998) flood plains, salmon habitat, and sand and gravel mining. washington geology 26(2/3): 3 28. rundquist, l. a. (1980) effects of gravel removal on river hydrology and hydraulics. in: woodward . gravel removal studies in arctic and subarctic floodplains in alaska. us fish wildl.