POTASH SALTS AND OTHER SALINES IN THE GREAT BASIN REGION. 75 
Table VIII. — List of lakes, with elevations and drainage area of the basins. 
Lake. 
Basin 
Lake 
Ratio basin 
to lake. 
Elevation. 
Depth. 
Great Salt Lake (including Utah and 
Sevier Lake). 
Franklin 
Ruby 
Eagle 
Pyramid 
Winnemucca . 
Humboldt — 
North Carson. 
South Carson . 
miles. Sq. miles. 
52, 000 2, 498 
Walker. 
Mono. 
Tahoe. 
Owens 
Honey 
Eagle 
Malheur 
Harney 
Alvord 
Silver 
Warner 
Abert 
Summer 
Gocse 
Surprise Valley. 
i 2, 975 
i 27, 575 
13,850 
< 770 
519 
2 3, 300 
i 2, 660 
700 
i 3, 200 
500 
2,000 
900 
550 
1,065 
^2,350 
105 
310 
195 
118 
85.5 
111 
100 
111.6 
• 4. 
15 
81 
60 
60 
190 
137 
20.8 
11.4 
9.6 
141.4 
32.6 
9.0 
4.6 
23.8 
5.5 
653 
33.3 
24.6 
15 
9.1 
5.6 
17.1 
Feet. 
4,200 
3,880 
3,875 
3,929 
3,900 
3,916 
4,083 
6,426 
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 miles . 
4, 196 
21 o. oon 
Ratio 50 to 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 
Truckee 
folio (910 square miles). 
Quartz 
Porphyry 
Granite 
Square 
miles. 
ll,512.9 
I 103.9 
t 336.6 
1,810.0 
2,005.8 
561.0 
Alluvial and 
sediment 
Per 
cent. 
67.0 
1 14.2 
} 18.? 
! Granodiorite. . . . 
Diabase 
Porphyrite 
Square 
miles. 
180 
|. 
6 
20 
332 
54 
1 ' 
} 52 
5 
125 
114 
Grano d i o r i t e 
and rhyolite. . 
Basalt 
Andesite 
Diabase 
Metamorphic... 
Sediment 
Water 
Per 
cent. 
22 
) 
\ 45. 1 
Diabase 
Andesite 
Porphyry 
Gabbro 
j 
Syenite 
6.15 
Trachyte 
Andesite 
Rhyolite 
Granite 
Rhyolite....... 
Andesite.. . 
Basalt 
14.3 
12.5 
Ryolite 
Slate....... 
Basalt 
Chert 
Carboniferous 
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 California (8,685 square miles): 
Alluvial 54,3 
Limestone 12. 1 
Andesites and basalts 11. 5 
Rhyolites and granites 21. 5 
