OCR Text |
Show Bct , ( s--Gencral sGencral ) . ( -As- As ) indicated 93 by ( tlie the ) ( latfge-stfale latfgestfale ) surveys ( Exhibit 76 ) the principal permanent ( fea- fea ) tures of the Green River are its rock walls . Those walls , however , ( are are- are ) rarely closer than 1,500 , to 2,000 feet ; therefore 7' the river ( although afth6ugh ) in . ( canyon eanyot ) ( ha's1 has1 liag ) considerable freedom of ( a'ctiott actiott xetioh ) ( and aild ) ( ni-eaifdo-rg nieaifdorg ) ( in iii ) Ali ( alluvial a-Hurial aHurial ) ( channel chantlel ) , cutting ( th'e the the ) ( banks' banks ) whefie ( thfcy thq ) tfre ( exposed dxposed ) to the thrust of ( the' the the ) ( current curreilt ) ( and atcl ) ( builditfg biffldbig ) ( up up- up ) bars where the velocities ( diirtinish diminish ) . The ( rivei rireff ) is constantly shifting , ( sorting soTting ) , and ( redistributing redistributhig ) the enormous volumes , of silt and ( sedimcfit sedimett ) brought * into it in suspension and bed ( load loffd ) . The bed ( of of' of ) the Green River between the ( San Smi ) Rafael River and its mouth and the Colorado ( River Rivet ) , from the mouth of the Green River to Moab ( wAs' wAs ) found to be sand of various degrees of fineness . As is to be expected in a river flowing in a bed . composed of fine material , the bedi although most irregular , had characteristics which are common to channels in unstable material . Within the limits of the rock ( walls Nvalls ) the ( river ri'ver river ) is flowing in a channel unstable as to bed and banks , but at the same time having certain prominent features , such as side bars and crossing bars , which are common to all rivers flowing in alluvial material . The crossing bars are probably the most troublesome as ( fax faT ) as depth and permanency of channel are concerned . Since these crossing bars are for the most ( part -part part ) ( sub- sub ) ( merged meTged ) , it is ( practical practically ) impossible to map them . |