33:
684:
678:
666:
672:
660:
40:
307:, explored the Colorado River Delta, and noted that the main channel of the Colorado followed this course. Later, in the 1880s, sea captains noted that the main channel of the Colorado had moved east; this earlier channel became known as Hardy's Colorado.
378:
In recent years, the Hardy has become a drain for agricultural waters polluted with pesticides and fertilizers from the
Mexicali Valley. The water quality in the Hardy is being monitored at Mexicali by the
326:
Due the dynamic course of the
Colorado River within Mexicali Valley, the Hardy River may have periodically become the primary watercourse of the Colorado as it flowed south to the
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383:(Food and Development Research Center) to measure the effects of discharge from the Las Arenitas wastewater treatment plant.
264:. The river is believed to have been an ancient channel of the Colorado, as well as the primary outflow for the prehistoric
101:
1316:
814:
790:
1296:
854:
420:
Río Hardy: A tribe without a river, by Celia
Rosario Rivas and Luis Carlos Romero-Davis, Tucson Citizen, June 20, 2006
1306:
1291:
1061:
410:
Deciding About the
Colorado River Delta, River Report, Water Education Foundation, Spring 1999, by S. Joshua Newcom
119:
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288:. Eventually, this lake would fill, to about 30 feet above sea level, and at that point overflow its banks near
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Contaminants in
Potential Prey of the Yuma Clapper Rail, U.S. Fish and Wildlife Service
415:
E.P.A.: California-Baja
California Regional Workgroup: California-Baja California Water
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The watershed of the Hardy River includes runoff from the eastern foothills of
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957:
889:
613:
592:
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201:
188:
134:
121:
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Reserva de la
Biosfera del Alto Golfo de California y Delta del Rio Colorado
599:
277:
659:
535:
627:
585:
646:
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253:
620:
539:
338:
The Rio Hardy is home to a variety of wildlife, including the
381:
528:
http://www.epa.gov/border2012/regional/workgroup-ca.html
280:, the Colorado River periodically flowed north into the
256:
river formed by residual agricultural waters from the
1325:
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1234:
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94:
84:
75:
55:
21:
1365:Metropolitan Water District of Southern California
296:; during those times, the Rio Hardy served as an
551:
59:
8:
303:In the 19th century, an English lieutenant,
1360:International Boundary and Water Commission
1034:
558:
544:
536:
490:"Deciding About the Colorado River Delta"
393:List of tributaries of the Colorado River
436:
405:The State of Baja California: Hydrology
515:"Tucson Citizen - the Voice of Tucson"
474:: CS1 maint: archived copy as title (
467:
319:to the west and the southern slope of
252:) is a 26-kilometer (16 mi)-long
18:
7:
1302:Glen Canyon National Recreation Area
39:
1340:Colorado River Board of California
1312:Lake Mead National Recreation Area
360:, are part of a protected Mexican
14:
1401:Tributaries of the Colorado River
276:In prehistoric times, during the
910:Gulf of California/Sea of Cortez
682:
676:
670:
664:
658:
38:
31:
16:River in Baja California, Mexico
1252:Colorado River Storage Project
356:(Egretta thula), and with the
284:, forming a large lake called
180: • coordinates
113: • coordinates
1:
1247:Colorado–Big Thompson Project
76:Physical characteristics
1317:Rocky Mountain National Park
1297:Dead Horse Point State Park
855:Lower Colorado River Valley
348:The Hardy's wetlands are a
168: • location
96: • location
1422:
1375:U.S. Bureau of Reclamation
1307:Grand Canyon National Park
1292:Colorado National Monument
1406:Rivers of Baja California
1287:Canyonlands National Park
656:
234:Baja California Highway 4
150:
80:
26:
1211:Central Arizona Project
1201:Colorado River Aqueduct
1173:Theodore Roosevelt Lake
1133:Flaming Gorge Reservoir
292:, and run south to the
260:, and running into the
221:26 km (16 mi)
47:Location of river mouth
1345:Colorado River Compact
1242:Boulder Canyon Project
249:
60:
1334:Arizona v. California
978:Little Colorado River
317:Sierra de Los Cucapah
1282:Arches National Park
1128:Fontenelle Reservoir
825:Colorado River Basin
765:Middle Granite Gorge
202:32.1479°N 115.2887°W
135:32.4165°N 115.2727°W
1370:Rapids and features
1138:Blue Mesa Reservoir
770:Lower Granite Gorge
300:for Lake Cahuilla.
226:Basin features
198: /
131: /
1380:William Mulholland
1216:All-American Canal
1206:San Diego Aqueduct
1168:Imperial Reservoir
988:Roaring Fork River
328:Gulf of California
294:Gulf of California
207:32.1479; -115.2887
140:32.4165; -115.2727
1388:
1387:
1270:
1269:
933:Dirty Devil River
870:Palo Verde Valley
776:Grand Wash Canyon
721:Horsethief Canyon
362:biosphere reserve
238:
237:
1413:
1275:Designated areas
1257:Grand Valley AVA
1121:Major reservoirs
1035:
830:Colorado Plateau
808:Natural features
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766:
761:
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730:Westwater Canyon
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492:. Archived from
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480:
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450:. Archived from
449:
441:
298:overflow channel
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1226:Coachella Canal
1188:
1182:
1178:San Carlos Lake
1116:
1047:Shadow Mountain
1026:
943:Escalante River
914:
905:Montague Island
895:Imperial Valley
875:Colorado Desert
820:Rocky Mountains
803:
769:
764:
759:
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735:Cataract Canyon
717:De Beque Canyon
712:Glenwood Canyon
687:
681:
675:
669:
663:
654:
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640:Baja California
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445:"Archived copy"
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258:Mexicali Valley
231:Major crossings
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173:Baja California
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106:Baja California
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1326:Related topics
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1235:Water projects
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1019:
1014:
1012:Las Vegas Wash
1009:
1004:
995:
993:San Juan River
990:
985:
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975:
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968:Gunnison River
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845:Sonoran Desert
842:
840:Horseshoe Bend
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811:
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802:
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798:
796:Pyramid Canyon
793:
788:
786:Boulder Canyon
783:
780:
779:Iceberg Canyon
777:
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757:
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709:
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581:United States
578:
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567:Colorado River
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350:nesting ground
335:
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305:R. W. H. Hardy
273:
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262:Colorado River
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161:Colorado River
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1187:Aqueducts and
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1123:
1119:
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1103:
1100:
1098:
1095:
1093:
1092:Headgate Rock
1090:
1088:
1085:
1083:
1080:
1078:
1075:
1073:
1070:
1068:
1065:
1063:
1060:
1058:
1055:
1053:
1050:
1048:
1045:
1044:
1042:
1040:
1039:Mainstem dams
1036:
1033:
1029:
1023:
1020:
1018:
1017:Williams Fork
1015:
1013:
1010:
1008:
1005:
1003:
1002:Tapeats Creek
999:
998:Thunder River
996:
994:
991:
989:
986:
984:
981:
979:
976:
974:
971:
969:
966:
964:
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956:
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951:
949:
946:
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941:
939:
938:Dolores River
936:
934:
931:
929:
926:
925:
923:
921:
917:
911:
908:
906:
903:
901:
898:
896:
893:
891:
888:
886:
883:
881:
878:
876:
873:
871:
868:
866:
865:Parker Valley
863:
861:
860:Mohave Valley
858:
856:
853:
851:
850:Mojave Desert
848:
846:
843:
841:
838:
836:
833:
831:
828:
826:
823:
821:
818:
816:
813:
812:
810:
806:
800:Mohave Canyon
799:
797:
794:
792:
789:
787:
784:
782:Virgin Canyon
781:
778:
775:
768:
763:
760:Granite Gorge
758:
755:
754:Marble Canyon
751:
750:
749:
746:
744:
741:
739:Narrow Canyon
738:
736:
733:
731:
728:
726:
723:
720:
718:
715:
713:
710:
707:
705:
702:
700:
697:
696:
694:
690:
685:
679:
673:
667:
661:
648:
644:
641:
637:
636:
634:
629:
625:
622:
618:
615:
611:
608:
604:
601:
597:
594:
590:
587:
583:
582:
580:
579:
577:
575:Jurisdictions
573:
568:
561:
556:
554:
549:
547:
542:
541:
538:
529:
524:
521:
516:
510:
507:
496:on 2008-07-05
495:
491:
485:
482:
477:
471:
457:on 2009-05-12
453:
446:
440:
437:
430:
426:
423:
421:
418:
416:
413:
411:
408:
406:
403:
402:
398:
394:
391:
390:
386:
384:
382:
374:Water quality
373:
371:
369:
368:
363:
359:
355:
351:
346:
345:
344:sailfin molly
341:
333:
331:
329:
324:
322:
318:
310:
308:
306:
301:
299:
295:
291:
287:
286:Lake Cahuilla
283:
279:
271:
269:
267:
266:Lake Cahuilla
263:
259:
255:
251:
247:
243:
233:
229:
224:
220:
216:
211:
183:
177:
174:
171:
165:
162:
159:
157:
153:
149:
144:
116:
110:
107:
103:
99:
93:
90:
87:
83:
79:
74:
69:
62:
58:
54:
34:
25:
20:
1350:Floyd Dominy
1332:
1262:Yuma Project
1062:Grand Valley
1021:
1007:Virgin River
953:Fraser River
815:River course
791:Black Canyon
748:Grand Canyon
699:Byers Canyon
523:
509:
498:. Retrieved
494:the original
484:
459:. Retrieved
452:the original
439:
380:
377:
365:
358:bird habitat
354:snowy egrets
347:
340:mosquitofish
337:
325:
321:Cerro Prieto
314:
302:
290:Cerro Prieto
275:
241:
239:
89:Cerro Prieto
1355:Lee's Ferry
1221:Alamo Canal
1196:Grand Ditch
1163:Lake Havasu
1158:Lake Mohave
1148:Lake Powell
1143:Navajo Lake
1072:Glen Canyon
1067:Price-Stubb
1031:Engineering
983:Paria River
973:Kanab Creek
963:Green River
948:Eagle River
920:Tributaries
880:Alamo River
743:Glen Canyon
725:Ruby Canyon
704:Gore Canyon
282:Salton Sink
242:Hardy River
205: /
193:115°17′19″W
138: /
126:115°16′22″W
56:Native name
22:Hardy River
1395:Categories
1097:Palo Verde
958:Gila River
928:Blue River
890:Salton Sea
835:Grand Lake
614:New Mexico
593:California
500:2008-04-16
461:2008-04-16
431:References
190:32°08′52″N
123:32°24′59″N
102:Nuevo León
1153:Lake Mead
1057:Windy Gap
1022:Río Hardy
885:New River
708:Red Gorge
311:Hydrology
250:Río Hardy
61:Río Hardy
1102:Imperial
600:Colorado
470:cite web
387:See also
352:for the
342:and the
334:Wildlife
278:Holocene
1112:Morelos
692:Canyons
635:Mexico
628:Wyoming
586:Arizona
399:Sources
272:History
254:Mexican
246:Spanish
68:Spanish
1189:canals
1107:Laguna
1087:Parker
1077:Hoover
1052:Granby
647:Sonora
607:Nevada
569:system
364:, the
218:Length
85:Source
64:
1082:Davis
900:Delta
455:(PDF)
448:(PDF)
156:Mouth
100:Near
621:Utah
476:link
240:The
1397::
472:}}
468:{{
370:.
330:.
323:.
268:.
248::
104:,
1000:/
559:e
552:t
545:v
517:.
503:.
478:)
464:.
244:(
70:)
66:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
