In the mid-1860's, Sonoran mercenaries raided a small Apache town near the US-Mexican border, near what are now the cities of Esqueda, Mexico and neighboring Douglas, Arizona. After slaughtering the captured males, they force-marched many of the surviving women southwest to the Gulf of California. Many of the women died en route, and the raiders sold the rest into slavery where they worked in the fields of a local hacienda.