Hydrographic Regions and Basins

Mineral
	Region	Basin	Sq Miles	Acres	Hydrographic Basin/Sub-Basin Name	Counties	Nearest Cities	Designated
		Total	110,545	70,748,800	Square miles/acres
[9] WALKER RIVER REGION (Hydrographic Region 9)
114	9	108	516	330240	Mason Valley	Lyon; Mineral; Douglas	Yerington; Mason	Yes
115	9	109	586	375040	East Walker Area	Lyon; Mineral	Bridgeport; Yerington	No
116	9	110A	502	321280	Walker Lake Valley/Schurz Sub-Area	Mineral; Lyon; Churchill	Schurz	No
117	9	110B	307	196480	Walker Lake Valley/Lake Sub-Area	Mineral	Walker Lake; Hawthorne; Schurz	No
118	9	110C	541	346240	Walker Lake Valley/Whiskey Flat-Hawthorne Sub-Area	Mineral	Hawthorne; Babbit	Yes
		Total	3,046	1,949,440	Square miles/acres
[10] CENTRAL REGION (Hydrographic Region 10)
119	10	111A	18	11520	Alkali Valley/Northern Part	Mineral	Hawthorne	No
120	10	111B	65	41600	Alkali Valley/Southern Part	Mineral	Hawthorne	No
121	10	112	27	17280	Mono Valley	Mineral	Hawthorne	No
122	10	113	97	62080	Huntoon Valley	Mineral	Hawthorne	No
123	10	114	323	206720	Teels Marsh Valley	Mineral	Mina; Benton Station	No
124	10	115	15	9600	Adobe Valley	Mineral	Benton Station; Mina	No
125	10	116	65	41600	Queen Valley	Mineral; Esmeralda	Fish Lake Valley; Benton Station	No
127	10	118	370	236800	Columbus Salt Marsh Valley	Esmeralda; Mineral	Fish Lake Valley; Mina	No
128	10	119	199	127360	Rhodes Salt Marsh Valley	Mineral	Mina	No
129	10	120	92	58880	Garfield Flat	Mineral	Mina; Hawthorne	No
130	10	121A	246	157440	Soda Springs Valley/Eastern Part	Mineral	Luning; Mina	Yes
131	10	121B	130	83200	Soda Springs Valley/Western Part	Mineral	Luning; Hawthorne	Yes
132	10	122	1277	817280	Gabbs Valley	Mineral; Nye; Churchill	Gabbs	Yes
133	10	123	227	145280	Rawhide Flats	Churchill; Mineral; Lyon	Schurz; Fallon	No
134	10	124	285	182400	Fairview Valley	Churchill; Mineral	Frenchman; Fallon; Eastgate	Yes
145	10	135	460	294400	Ione Valley	Nye; Mineral	Gabbs; Ione	No
146	10	136	284	181760	Monte Cristo Valley	Esmeralda; Mineral	Mina; Tonopah	No
147	10	137A	1603	1025920	Big Smoky Valley/Tonopah Flat	Nye; Esmeralda; Mineral	Tonopah; Manhattan	Yes
		Total	46,783	29,941,120	Square miles/acres