Furnace Creek was formerly the center of Death Valley mining and operations for the Pacific Coast Borax Company and the historic 20 Mule Teams hauling wagon trains of borax across the Mojave Desert .
PROPN PROPN AUX ADV DET NOUN ADP PROPN PROPN NOUN CCONJ NOUN ADP DET PROPN PROPN PROPN PROPN CCONJ DET ADJ NUM PROPN PROPN VERB NOUN NOUN ADP NOUN ADP DET PROPN PROPN .