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Show ( Castle Castla ) ( Creek Creelo ) to Moab . ( --In In ) 107 this ( 14-mile 14mile ) ( stretoh streWli ) , ( but but- but ) more especially the upper ( 12-mile 12mile ) stretch ( between betwebii ) Castle Creek and ( Nigger Niager ) Bill Creek , rapids are . numerous . The average slope is considerably ( greater greater- greater ) than the slope below ( Moab -Moab Moab ) and in at least three places ( See Compl . Exhibit 10 , sheets 19 to 21 , and Compl . Exhibit 80 , pages 10 , 11 ) the rate of fall ( per por ) mile exceeds 10 feet . ( Photographs 170 , 171 , Compl . ( t . ) Exhibit 77 . ) Moab to ( mouth vzouth ) of Green . ( -In In ) this ( 65-mile 65mile ) stretch there is only one place where the channel has been ( con- con ) tracted sufficiently to cause an increase in the velocity comparable with a rapid , and this occurs at ( "The The ) , ( Slide" Slide ) located on the Colorado 1.8 miles above ( the the- the ) mouth of Green River . This slide has been described by various witnesses and the descriptions conform to , that contained in Compl . Exhibit 75 , page 70 , and mapped in Compl . Exhibit 76 ; also in Compl . Exhibit 491 , and Compl . Exhibit 490 . Mouth of Green River to Mille Crag Bend ( ( Cata Cata- Cata ) ract Canyon ) . ( -In In ) the ( 40-mile 40mile ) stretch occurs a series of rapids which were defined by Powell as cataracts . These rapids often occur so frequently that there is no open space between them ; consequently , there is a somewhat wide range in the testimony as to the actual number . Hoyt , in Compl . Exhibit 80 , page 3 , shows 49 rapids at which the total drop is 302 feet and having an average fall at the rate of 33 feet to the mile . This exhibit is based on the ( river- river ) survey profiles and number and location are ( con- con ) |