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The
Colorado River hydrologic region has a surface area of about 20,000 sq mi (52,000 km), and includes all of
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is the major watershed of this region. The
Colorado River hydrologic region has 71 state-recognized alluvial
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Alluvial groundwater basins of the
Colorado River hydrologic region
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253:7-49 Pipes Canyon Fault Valley groundwater basin
16:Regional subdivision, CA Dept of Water Resources
190:7-28 Vallecito-Carrizo Valley groundwater basin
268:7-54 Buck Ridge Fault Valley groundwater basin
226:7-40 Quien Sabe Point Valley groundwater basin
154:7-21 Coachella Valley groundwater basin - see
145:7–18.02 Upper Johnson Valley groundwater basin
109:7-10 Twentynine Palms Valley groundwater basin
250:7-48 Helendale Fault Valley groundwater basin
112:7-11 Copper Mountain Valley groundwater basin
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181:7-25 Ocotillo-Clark Valley groundwater basin
23:Colorado River hydrologic region map (2013)
193:7-29 Coyote Wells Valley groundwater basin
217:7-37 Arroyo Seco Valley groundwater basin
184:7-26 Terwilliger Valley groundwater basin
259:7-51 Lost Horse Valley groundwater basin
235:7-43 Chemehuevi Valley groundwater basin
220:7-38 Palo Verde Valley groundwater basin
187:7-27 San Felipe Valley groundwater basin
41:California Department of Water Resources
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244:7-46 Canebrake Valley groundwater basin
202:7-32 Chocolate Valley groundwater basin
94:7-5 Chuckwalla Valley groundwater basin
262:7-52 Pleasant Valley groundwater basin
199:7-31 Orocopia Valley groundwater basin
196:7-30 Imperial Valley groundwater basin
130:7-15 Bessemer Valley groundwater basin
305:"California GROUNDWATER Bulletin 118"
271:7-55 Collins Valley groundwater basin
247:7-47 Jacumba Valley groundwater basin
238:7-44 Needles Valley groundwater basin
229:7-41 Calzona Valley groundwater basin
151:7-20 Morongo Valley groundwater basin
148:7-19 Lucerne Valley groundwater basin
118:7-13 Deadman Valley groundwater basin
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280:7-61 Davies Valley groundwater basin
211:7-35 Ogilby Valley groundwater basin
115:7-12 Warren Valley groundwater basin
103:7-8 Bristol Valley groundwater basin
82:7-1 Lanfair Valley groundwater basin
337:California state hydrologic regions
277:7-59 Mason Valley groundwater basin
241:7-45 Piute Valley groundwater basin
232:7-42 Vidal Valley groundwater basin
136:7-17 Means Valley groundwater basin
127:7-14 Lavic Valley groundwater basin
85:7-2 Fenner Valley groundwater basin
214:7-36 Yuma Valley groundwater basin
208:7-34 Amos Valley groundwater basin
133:7-16 Ames Valley groundwater basin
100:7-7 Cadiz Valley groundwater basin
97:7-6 Pinto Valley groundwater basin
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106:7-9 Dale Valley groundwater basin
91:7-4 Rice Valley groundwater basin
88:7-3 Ward Valley groundwater basin
177:Borrego Valley groundwater basin
29:Colorado River hydrologic region
156:Coachella Valley Water District
37:hydrologic regions of the state
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166:7-21.03 Desert Hot Springs
169:7-21.04 San Gorgonio Pass
265:7-53 Hexie Mountain Area
139:7-18 Johnson Valley Area
124:7–13.02 Surprise Spring
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286:7-63 Vandeventer Flat
163:7-21.02 Mission Creek
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274:7-56 Yaqui Well Area
256:7-50 Iron Ridge Area
223:7-39 Palo Verde Mesa
205:7-33 East Salton Sea
172:7-22 West Salton Sea
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142:7–18.01 Soggy Lake
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71:groundwater
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33:California
60:San Diego
52:Riverside
58:, and
308:(PDF)
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