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<br />0023-'t9 <br /> <br />~~ <br /> <br />Figure 7. Maps showing <br />topography of the bed of the <br />Colorado River between Paria <br />Riffle and the riffle opposite <br />Cathedral Wash, between River <br />Mile 1 and 2.3. Flow is from top to <br />bottom. A. Bed topography <br />measured in May 2002. B. <br />Change in bed elevation between <br />August 2000 and September <br />2000. C. Change in bed elevation <br />between September 2000 and <br />May 2002. Note that areas of <br />significant bed elevation change <br />are confined to a relatively small <br />part ofthe channel. Data from <br />GCMRC and Rubin et al. <br />(unpublished data). RM1.2R is <br />mentioned in the text, Photograph <br />location site of Figure 41 is shown <br />in A(".i). RM3 is an EDZ monitored <br />by NAU. <br /> <br />~-") <br /> <br /> <br />OTS ,,1 :l'k":_......:.:... <br /> <br />~ <br /> <br />~~r <br /> <br />, <br /> <br />o 0.15- <br /> <br />(lJ .-::.-_:.:..:::=-~l~ <br /> <br />W.f <br /> <br />, <br /> <br />o d'S o.~_. ::-_--:-_~--=~~~ <br /> <br />N <br /> <br />w~r <br /> <br />, <br /> <br />A. <br /> <br />...2_ <br /> <br />....2002T_I.) <br /> <br />. <br /> <br />.....:..S.A <br /> <br />~ loW: 107.1 <br /> <br />.......... <br /> <br />..... Gr..-.r UWIA ~ <br /> <br />er..... ",1InId:uN <br /> <br />-...- <br /> <br />B. <br /> <br />Legend <br /> <br />o fOI8.:..r.~"""'~ <br /> <br />Bed Surface Change (em) <br />..- <br /> <br />...- -~ - <br />.IW J.,- I <br />< I' - .,"." <br />/' -".. <br />L - <br />" I <br />[. I <br />\. '.".,,,, <br />. ". I <br />'~....J- <br /> <br />c. <br /> <br />Legend <br /> <br />D EOlC......-~.jO.~ <br /> <br />Bed Surface Change (em) <br /> <br />v.... <br /> <br />j- <br />I <br /> <br />Ij~![~f' <br />'.. <br /> <br />.....~- <br />.t. ~ <br />". I_ <br />.' I <br /> <br />,. <br /> <br /> <br />.. <br />.. <br /> <br />3.0 The Valley of the Colorado River 11 <br />