"Borax" Smith's mine at Harmony, Death Vallley, ca.1890 

Sixteen-mule team hauling borax from old Borate, ca.1890-1900 

Borax Mill at Daggett, California, ca.1890 

Borax Smith's 20-mule team hauling borax across the desert, Death Valley [?], ca.1890 

Twenty-mule team hauling borax in wagons from mines in Death Valley, ca.1890 

Twenty-mule team hauling borax out of Death Valley to the railroad, ca.1900 

Traction steam engine hauling borax, ca.1900 

Interior view of a mine (named Bagdad Mine?) belonging to the Rochester Gold Mining Co., Ludlow, California, ca.1900 

Miners lounging around sacks of ore from the Red Top mine, Goldfield, Nevada, ca.1900 

Large stack of salt being piled at a salt mine, California, ca.1910 

Twenty-mule team hauling borax in a wagon as seen from behind, probably in Mule Canyon, ca.1890 

Amalgamator at a mine on the Colorado River, California, ca.1900 

Traction steam engine hauling borax, ca.1900-1904 

Concentrator mill at a mine on the Colorado River, California, ca.1900 

Three pack burros used in mining, California, ca.1900 

View of a salt mine, California, ca.1910 

Seven unidentified Indian baskets on display, ca.1900 

Pacific Coast Borax Company at Death Valley Junction, California, ca.1900/1950 

Interior view of Bagdad mine on the 90 feet level, California, ca.1900 

A group of miners (forming a mine shift) pose in front of mine headframe (shaft), Goldfield, Nevada, ca.1905