78 EECONNAISSANCE OF PART OF WESTERN ARIZONA. 
WELLS. 
Nelson. — The well at Nelson, Ariz., is 1,043 feet deep. At 516 
feet a little water was found, and in the sandstone near the bottom 
a larger supply was encountered; but the available quantity has 
not been ascertained. The formations passed through are as follows: 
Log of railroad well at Nelson, Ariz. 
Feet. 
Cemented detritus 0- 44 
Limestone (Redwall) 44- 396 
Sandstone and shale (Tonto) 396-1, 043 
Peach Springs. — A well at Peach Springs, Ariz., is 920 feet deep. 
A small amount of water was encountered somewhere in the lower 
half, but the horizon is not known. Water stands at a depth of 413 
feet, and a preliminary pumping test yielded 25 gallons per minute, 
or 14,000 gallons per day of twenty-four hours. This is insufficient 
for railway use, and the well is to be sunk deeper. The formations 
passed through are as follows : 
'Log of railroad well at Peach Springs, Ariz. 
Feet. 
Cemented gravel 0-200 
Limestone (Redwall) 200-560 
Shale (Tonto) 560-920 
Hackberry. — There are several dug wells at Hackberry, Ariz., in 
or near the bed of Truxton Creek. They penetrate through the de- 
tritus and encounter granite at a depth of about 70 feet, where a 
limited flow of water is obtained. The well at the railway station is 
taxed to its extreme limit in supplying 80,000 gallons in twenty-four 
hours, or 55 gallons per minute. 
Kingman. — There are about 60 wells in the town of Kingman. A 
few of these are dug, but most of them are drilled. They are from 
120 to 200 feet in depth, according to the difference in surface eleva- 
tion. The water occurs in a bed of volcanic tuff about 30 feet thick, 
which rests upon the granite. An abundance of water is obtained 
from these wells to supply the needs of the railroad and the town. 
Gold Basin. — Two wells 500 and 700 feet deep were drilled several 
years ago in Gold Basin at the northern end of the Hualpai Valley, 
about 50 miles north of Kingman. Nothing but detrital material 
was penetrated, and no water was encountered. 
Drake. — The well at Drake, in the Sacramento Valley, is 687 feet 
deep and penetrates to bed rock. Water was encountered at a depth 
of 430 feet in "gray granite" and rose 30 feet. (This material is 
undoubtedly granitic wash, cemented by carbonate of lime. Ce- 
mented material of this kind is common in the Quaternary deposits 
throughout the arid regions. The yield of the well has not been 
determined. 
