Under a biodiversity monitoring and assessment activity supported by the US Agency for International Development (USAID), scientists and conservationists of the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) and WWF-Vietnam captured photographs of one of the rarest and most threatened mammal species of Southeast Asia, the large-antlered muntjac (Muntiacus vuquangensis), in Quang Nam province, central Vietnam. Prior to this milestone, this species had only been camera trapped in three protected areas in all of Vietnam since the year 2000. The new records from Quang Nam—which include photographs of both a male and a female—provide new hope for the continued survival of a species that is on the brink of extinction.