The Panteón Municipal is Agua Prieta's main historical cemetery, containing graves from the early 20th century when the city grew rapidly around the copper mining industry. The elaborate ironwork and stone monuments in the older sections reflect the modest prosperity of a frontier mining town.
The cemetery is worth visiting any time, but it becomes genuinely extraordinary during Día de los Muertos at the beginning of November. Elaborate ofrendas (altars) are built at family graves, and the entire space is lit with candles and decorated with marigolds. Few travellers passing through on a November border crossing make the detour here — those who do rarely forget it.