KEGTON ABOUT GOLDFIELD. 
RALSTON VALLEY. 
The south end of Ralston Valley is within the area surveyed and 
ies between the Monitor, Goldfield, and Southern Klondike hills and 
lie Cactus Range. Hills surrounded by gravels extend from the 
Cactus Range northeastward toward the Kawich Range and separate 
talston Valley from Cactus Flat, and on the divide the Recent gravel 
eposits are probably but a few hundred feet thick. Ralston Val- 
?y is very shallow, the rim of hills being in many places but 200 
eet above the playa (elevation, 5,270 feet). Low 7 sand dunes lie on 
tie northeast of the playa. A well sunk in the playa struck water 
t a depth of 240 feet. 
STONEWALL FLAT. 
Stonewall Flat, of northeast-southwest trend, is inclosed by the 
kctus Range, Stonewall Mountain, the Goldfield hills, and the 
iount Jackson hills. A gently sloping detrital divide with rock 
iliers separates it from Ralston Valley to the north, while the 
etrital barrier between it and the valley north of Slate Ridge is 
iss than 100 feet high. Several small playas, between 4,700 and 
,800 feet above sea level, occupy minor depressions in the valley, 
"he playas nearest the Cactus Range are encircled by low sand dunes. 
l well on the Goldfield-Gold Crater road, 2 miles east of the largest 
laya, struck water at a depth of about 110 feet. The water con- 
jpis small amounts of salt and probably sodium carbonate. On 
lie west side of the largest playa are low dissected bosses of dazzling 
diite older alluvium, the highest of which are 25 feet above the pres- 
et playa. Massive beds of white or cream-colored clay of fine 
3xture, with thin interbedded layers of white limestone, are exposed. 
l number of compact lenticular lime-carbonate concretions, with 
ackly surface, which reach a maximum length of 6 inches, are em- 
edded in the clay. These beds resemble those of Gold Flat and the 
alley north of Slate Ridge and have suffered about the same amount 
f erosion. They were evidently deposited in .an ancient playa. 
ossibly of late Pliocene, but probably of early Pleistocene, age. 
STON E W A LL M OX T X TA I X . 
TOPOGRAPHY AND GEOGRAPHY. 
Stonewall Mountain rises from the northwest border of Pahute 
Iesa. It was named, according to some, from Gen. Stonewall Jack- 
n, but by others the name is said to have been derived from the 
recipitous, wall-like northern face of the mountain. The rugged 
ountain group, miles in diameter, is formed of sharp peaks and 
eep ridges culminating in a summit 8,390 feet high. Stonewall 
[ountain is an excellent example of the symmetrical erosion <d a 
omogeneous mass of an approximately circular horizontal plan. 1 )eep 
