'Mining of this mineral began in Death Valley in 1883 with 20-mule teams dragging it out'
Borax
SOAPS: Mining of this mineral began in Death Valley in 1883 with 20-mule teams dragging it out
Mining of this mineral began in Death Valley in 1883 with 20-mule teams dragging it out
Mining of this mineral began in Death Valley in 1883 with 20-mule teams dragging it out
SOAPS
Borax
SOAPS