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Show 64 relative to the inability to stop the ( dredge Iredge ) much short of Lees Ferry while they were ( making inaking ) a move . from one bar to ( another amther ) near the ( mouth inouth ) of the San . Juan River , and of the second Powell expedition as related by Jones ( Exhibit 628 , diary for October 42 1871 ) , when in the bedrock section during ( low low- low ) water one boat hit bottom with sufficient force to break it . All evidence ( seems seeins ) to indicate that ( for- for ) considerable portion of the river higher velocities than are shown at Lees ( Perry Ferry ) for ( corresponding corresponding- corresponding ) stages obtained . Col . Dent ( Vol . 7 , page 1285 ) ( tes- tes ) tifies that in his judgment the only way a rowboat could have been taken upstream at the 19 rapids he . noted in Glen Canyon , would be by dragging ( the- the ) boat by hand . Homer Hite ( Vol . 20 , page 3612 ) states how 13 men took 26 days bringing launch and , ( rowboats xowboats ) up through Glen Canyon . Considerable evidence ( Chaffin , Vol . 30 , p . 5313 ) was introduced by the State to the effect that ( row- row ) boats have sailed up the Colorado ( Eiver River ) through portions of the canyon , including the stretch of river in which rapids are located . Since the ( pre- pre ) vailing wind is ( from fTOM ) the southwest in this region and at times blows through the canyon section with . ( terrific terrifle ) force , it is possible that a sail might provide , sufficient force to ( counteract colinteract ) the downstream ( veloc- veloc ) ity under such storm conditions ( ( Photo Plioto ) . . 40a , , Ex . . . 77 ) even in the rapids . |