The Inca Empire’s southern expansion into central Chile’s Qullasuyu province left subtle but significant traces in Las Dichas, a region rarely associated with Inca heritage. This study explores the barely known natural thermal springs at Porvenir, likely revealed to Spanish conquerors through Inca captives, and the mercury-based gold mining along the Camino de los Polleros, where Diaguita laborers toiled under Inca rule. The area, known as Curamilla—Quechua for “golden stone”—remains off the beaten path, its Inca legacy obscured by its remote location and limited archaeological attention. Personal observations, including mercury detected in a runoff from the Estero Casablanca on family land, underscore the enduring environmental impact of these practices. This analysis, grounded in material evidence and ethnohistory, highlights Las Dichas as a lesser-known node in the Inca network.