| OCR Text |
Show Additional testimony showing 65 velocities iii Glent Canyon sufficient to retard upstream progress of boats is shown by the record as follows : : Aurand ( Vol . 7 , page 1373 ) ; ; Clark ( Vol . . 9 , pages 1720 , 1723 ) ; ( Clark ClarIc ) ( Vol . . 10 , page 1731 ) ; Gerdine ( Vol . . 10 , page 1852 ) ; ; Ed ¬ wards ( Vol . 11 , ( pag-e page page ) 1978 ) ; McDonald ( Vol . 12 , page 2182 ) ; ( Marrs Alarrs ) ( Vol . . 13 , page 2462 ) ; Freeman ( Vol . 14 , page ( 2575 20-75 ) ) ; ; ( John- John ) soil ( ( Vol Al'ol Alol ) . 16 , pages 3017 , 3042 ) ; Bennett ( Vol . 17 , page 3182 ) ; ( Ohaffin Chaffin ) ( Vol . 17 , , page 3270 , ( Vol Yol ) . 18 , pages 3302 , 3328 ) . San Juan River ( near iiear ) Bluff Utah . ( -As As ) shown on Plate 4 , Exhibit ( 82-A 82A ) , the velocity in the thread of the current ranges from 2 miles an hour at the ( low-water lowwater ) stage to nearly 9 miles an hour at flood stage . . Plate 7 , Exhibit ( 82-A 82A ) ( , . ) shows that velocities exceed 5 % ( miles iniles ) an hour for more than ( half haH ) the time . . Miser , in his San Juan report , Exhibit 56 , states that the velocity is fairly swift between the rapids and that during flood stage is so swift that experienced boatmen do not ( venture -N7enture N7enture ) thereon during such periods . The average slope of its ( -flattest flattest ) ( see- see ) tion is 50 per cent greater ( page 4 , Exhibit 80 ) than the rapid water stretches of the Colorado ( Ri-Xrer RiXrer ) through ( Grlen Glen ) Canyon . Variations of flow Roughly speaking , over ( 35,000 30-0,000 ) observations of daily flow have been made by the Geological ( Sur- Sur ) |
