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<br />Southwestern Cities
<br />
<br />The part of the river Yuma
<br />Projects Office operates provides
<br />water to several southwest cities:
<br />... Las Vegas, . A
<br />. Los Angeles,
<br />.. SarfDiego:
<br />. Phoenix, and" ,
<br />... Tucson..
<br />
<br />Communities
<br />
<br />,..;,."
<br />/.~
<br />
<br />The part of the river Yuma
<br />Projects Office operates provides
<br />water to several communities 10-
<br />" cated along the lower reach of
<br />the river: ' .
<br />. Bullhead City, Arizona;
<br />. Laughlin, Nevada;
<br />. Needles, California;
<br />. Lake Havas\, City, Arizona; "
<br />II- Parker,. Arizona;
<br />. Blythe, Arizona;
<br />. Ehrenberg, Afizona;
<br />.. Yuma, Arizona;
<br />. Winterhaven, California; arid
<br />. San Luis, Arizona and San Luis,
<br />So~ora, Mex~c~. . '
<br />
<br />Indian Reservations
<br />
<br />The area 01 the river Yuma
<br />Projects Office operates flows
<br />'past live Indian Reservations:"
<br />. " Mohave Indian Reservation,
<br />. Colorado "River Indian Reserva-
<br />tion,
<br />. Chemehuevi Indian Reserva-
<br />tion, '
<br />. Quechan Indian Reservation,
<br />and
<br />. Cocopah Indian Reservation,
<br />
<br />Wildlife Areas
<br />
<br />The area of the river Yuma
<br />Projects Office operates flows
<br />past three wildlife areas:
<br />. Havasu National Wildlife
<br />Refuge,
<br />. Cibola National Wildlife
<br />Refuge, and
<br />. Imperial National Wildlife,
<br />Refuge,
<br />
<br />0'
<br />
<br />~ Topock Gorge Division, from
<br />Topock to the upper end of Lake
<br />Havasu, includes the Havasu Na-
<br />tional Wildlife Refuge and the
<br />Chemehuevi Indian Reservation;
<br />~ " HavaSu Dlvl8ion, covers all of
<br />Lake Havasu "and the river be-
<br />tween Parker Dam and Headgate
<br />Rock Dam;
<br />~ Parker Division, from Parker,
<br />Arizona.to the Palo Ve,rde Diver-
<br />sion Dam, includes most of the
<br />"Colorado River Indian Reservation;
<br />~ Palo Verde Division, from just
<br />south 01 the Palo Verde Diversion
<br />Dam to Taylor Ferry, includes the
<br />. Blythe, California area;
<br />~ Clbola Division, from Taylor
<br />Ferry to Adobe Ruins, includes
<br />the Cibola National Wildlife
<br />'Refuge;
<br />~" Imperial Division, from Adobe
<br />Ruins to Imperial Dam, includes
<br />Picacho State Recreation Area
<br />, and Imperial National Wildlife
<br />Refuge;
<br />~ Laguna Division, from Imperial
<br />Dam to Laguna Dam, includes the
<br />Laguna Settling Basin;
<br />~ Yuma Division, from Laguna Dam
<br />to the spot where the rh.:er cros-
<br />ses the border between California
<br />and Mexico, includes the Quechan
<br />Indian Reservation and the Yuma,
<br />Arizona area;
<br />~ Umltrophe Division, from the
<br />border between California and
<br />Mexico to the border between
<br />Arizona and Mexico at San Luis,
<br />Arizona, includes Morelos Dam
<br />and the Cocopah Indian Reserva-
<br />tion,
<br />
<br />Limitrophe Division
<br />
<br />While flowing past the northwestern
<br />edge of Yuma, the Colorado River
<br />passes the Northerly International
<br />Boundary where the river meets the
<br />~order between California and
<br />Mexico,
<br />
<br />The river then flows south for
<br />another 20 m"i1es where it passes the
<br />Southerly International Boundary"
<br />located at San Luis, Arizona, and San
<br />Luis, Sonora, Mexico, where the
<br />river meets the border between
<br />Arizona and Mexico, At the Souther-
<br />
<br />Iy International Boundary, the river
<br />enters exclusively into Mexico
<br />where responsibility for the river
<br />ends for the U,S"Bureau of Reclama-
<br />tion and becomes the entire"respon-
<br />sibility 01 the Mexican government.
<br />
<br />The section of the Colorado River be-
<br />tween the Northerly International
<br />Boundary and the Southerly Interna-
<br />tional boundary is called,the
<br />Umltrophe Division C"limitrophe" .
<br />meaning situated on a border),
<br />
<br />In the Limitrophe Division the east
<br />side of the river lies in the U.S, and
<br />is the responsibility of the U,S,
<br />g~lVernment, while the west side of
<br />the river lies in Mexico and is the
<br />responsibility of the Mexican govern-
<br />ment.
<br />
<br />The Limitrophe Division is a politi-
<br />cally sensitive section of the river
<br />since work done to one side of the
<br />river could affect the other side of
<br />the river, The United States and
<br />Mexican governments are involved
<br />in operating the river and have es-
<br />tablished the International Bound-
<br />ary and Water Commission to coor-
<br />dinate intergovernmental alfairs
<br />along the border and to coordinate
<br />operation and maintenance ac-
<br />tivities in the Umitrophe Division,
<br />
<br />
<br />u.s. Department of the Interior
<br />Bureau of Reclamation
<br />Lower Colorado Region,
<br />
<br />Yuma Projects Office
<br />Po. Box D
<br />7301 Calle Agua Salada
<br />Yuma, Arizona 85364
<br />
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