POTASH SALTS AXD OTHER SALINES IN THE GEEAT BASIN REGION. 75- 

 Table VIII. — List of lakes, with elevations and drainage area of the basins. 



Lake. 



Basin 

 area. 



Lake 

 area. 



Ratio basin 

 to lake. 



Elevation. 



Depth. 



Great Salt Lake (including Utah and 

 Sevier Lake). 



Franklin 



Ruby 



Eagle 



Pyramid 



Winnemucca . 



Humboldt 



North Carson. 

 South Carson . 



Walker. 

 Mono... 



Tahoe . 



Owens 



Honey 



Eagle 



Malheur 



Harney 



Alvord 



SUver 



Warner 



Abert 



Summer 



Goose 



Surprise Valley. 



Sq. miles. Sq. miles. 

 .52,000 ! 2,498 



1 1, 200 



1 2, 975 



I 27, 575 



^ 3, 850 



1 770 



519 



2 3,300 

 1 2, 660 



700 



1 3, 200 



500 



2,000 



900 



550 



1,065 



I 2, 350 



310 



195 



118 



85.5 



111 



100 

 111. 6 



125.6 



4.9 

 15 

 81 



190 

 137 



20.8 

 11.4 



32.6 

 9.0 



33 



23.8 



5.5 



653 



33.3 



24.6 



IS 

 9.1 

 5.6 



17.1 



Feet. 

 4,200 



3,880 



3,875 

 3,929 

 3,900 

 3,916 



4,083 



6,225 



3, .569 

 3, 949 



4,200 

 4,340 

 4,600 

 4,400 

 4,300 

 4,800 

 4,640 



49 feet av» 

 erage. 



361 deep- 

 est. 

 87 deepest^ 



Variable. 



4 feet, very- 

 shallow. 



118 feet av- 

 erage. 



61.5 aver- 

 age. 



1,635 deep- 

 est. 



40 average. 



18 inches. 

 10 feet, 



■Very shal- 

 low. 



None ex- 

 ceed 25 

 feet. 



Square mUes . 



Total lake surface , , , . . 4, 196 



Basin area 210, 000 



Pi.atio 50 ta 1 



1 Free's table of basin areas. 2 water Supply Paper No. 294, U. S. Geol. Survey. 



Table IX. — Distribution of different rocks in Great Basin region. 



Map V, Clarence King, fortieth parallel 

 square miles). 



(17,612 



Tnickee 



foUo (910 square miles). 





Quartz 



Square 



miles. 



ll,512.9 

 I 103.9 



336.6 



1,810.0 

 2,005.8 



561.0 



Alluvial and 



sediment 



Basalt 



Per 

 cent. 



67.0 

 I 14.2 



1 18.? 



' Granodiorite 



) Diabase 



Porphyrite 



Square 



miles. 



180 



1- 



6 



20 



332 



54 



1 • 



1 52 



5 

 125 

 114 



Granodiorite 

 and rhyolite. . 



Basalt 



Andesite 



Diabase 



Metamorphic... 



. Sediment 



Water 



Per 



cent. 



Porphyry 



Granite 



Diorite 



22 



I 4.5. 1 



Diabase 



Syenite 



Andesite 



j Porphyry 



Gabbro 



Rhyolite 



1 Andesite 



j Basalt 



J 



6.15 



Trachyte 



Andesite 



Rhyolite 



Granite 



14.3 

 12.5 



Prophylite 



.., 





Ryolite 



j Slate 





Basalt 



Chert . . . . 





Garb oniferous 



and Archean . . 



Triassic 



Quartzite 



Metamorphic . . . 



Juratrias 



Shist slate 



Neocene lake 

 beds 





Tertiary, Hum- 

 boldt and 

 Truckee 





Quaternary and 

 Recent 



Pleistocene 



Water 





Lake 











Maps IV and V, King (35,200 square miles): Per cent. 



Granite 10 



Rhyolite and trachyte 23 



Basalt and andesite 14 



Alluvial and sediment 53 



Southwestern Nevada and eastern CaUfomia (8,685 square miles): 



Alluvial 54.9 



Limestone 12. 1 



Andesites and basalts 11.5 



Rhyolites and granites ...,..,...,_....,...„„,,,, ^ .,,,,,, , . , 21. 5 



