Arkansas River. Arkansas, Black, Red, Ouachita, and White River systems and their tributaries, hearings, 74th Congress, 1st session, measures for prevention of soil erosion, for flood control, for irrigation, for navigation, for constructing hydroelectric plants, and other betterments in areas drained by Arkansas, Black, Red, Ouachita, and White River systems and their tributaries, Feb. 14-19, 1935.