OCR Text |
Show '29.51 31.82 ( 33.8y 338y ) 36.52 39y 101 40 , 43 , 46.51 ( 48.5y 485y ) 49.51 50 , 50.67 53.92 54.21 54.41 55.51 56y 572 59 , 617 62 , ( 62.8y 628y ) 64.4 ( , ) ) and 64.8 . ( Most 'iNfost iNfost ) of these bars are in straight ( stretches stretelies ) of the river and there is every reason to believe that under the same flow conditions they maintain about their same relative position . ( How How- How ) ever , long periods of uniform flow are unusual and ( with Nvith ) variable flow the unstable condition of crossing bars previously discussed will prevail . ( "Without Without Without ) exception the channel depths across these ( bars Nars ) , are ( shallow shallow- shallow ) The most common channel depths at the bends and between the . bars ranged from 3 ( to -to to ) 5 feet . The drainage area tributary to the Colorado River ( below -below below ) ( Moab Aloab ) is approximately twice as large as the area contributing to the Green below the ( mouth moutli ) of the San Rafael ( , . ) Courthouse Wash and Mill Creek , discharging into the Colorado River in the vicinity of Moab , and Kane Spring Wash , ( Lockhart LockbaTt ) Creek Indian Creek Salt Creek and Red , , , Lake Canyon coming in ( lelow below ) Moab , all drain ( ex- ex ) tensive areas subject to erosion . The load carried by these tributaries during floods may have ( pro- pro ) duced a considerable amount of the canyon fill , ( be- be ) cause there is indication that during such periods they ( may inay ) fill channels 100 feet wide and 10 feet or more deep with a velocity sufficient to roll and otherwise move large boulders . About 40,000,000 cubic yards of sediment may ( paps pass ) Cisco during a year . |