Hydrographic Regions and Basins
Storey
 RegionBasinSq MilesAcresHydrographic Basin/Sub-Basin NameCountiesNearest CitiesDesignated
   Total110,54570,748,800Square miles/acres   

[5] WEST CENTRAL REGION (Hydrographic Region 5)

 79 5 76 120 76800 Fernley Area Lyon; Washoe; Storey; Churchill Fernley; Hazen Yes
   Total1,6561,059,840Square miles/acres   

[6] TRUCKEE RIVER REGION (Hydrographic Region 6)

 86 6 83 285 182400 Tracy Segment Storey; Washoe; Lyon Sparks; Fernley Yes
 90 6 87 203 129920 Truckee Meadows Washoe; Storey Reno; Sparks Yes
   Total2,3001,472,000Square miles/acres   

[8] CARSON RIVER REGION (Hydrographic Region 8)

 108 8 102 480 307200 Churchill Valley Lyon; Churchill; Douglas; Storey Fallon Yes
 109 8 103 369 236160 Dayton Valley Lyon; Storey; Carson City; Douglas Dayton; Virginia City Yes
   Total3,5192,252,160Square miles/acres