Osan-ri Prehistory Museum is dedicated to preserving, researching, and exhibiting artifacts found in the Archaeological Site in Osan-ri, Yangyang. These artifacts, dating back to the Neolithic period about 8,000 years ago, were found over the course of public works on the museum’s surrounding wetlands. The collection of nearly 40,000 artifacts, include earthenware with a raised design, stone arrowheads, and net weights, represent one of the premier archaeological findings of the Neolithic period in Korea. The artifacts themselves speak to the fishing, hunting, and gathering activities of the Neolithic residents of Osan-ri. The museum is divided into indoor and outdoor exhibitions, storage, and research areas. Exhibition Hall 1, located indoors, offers a diorama of the Neolithic lifestyle in Osan-ri, such as fishing, gathering, and earthenware production. Exhibition Hall 2 introduces the prehistoric culture of the Yeongdong region, encompassing the periods from the Neolithic to the Iron Age in Yangyang, Goseong, and Gangneung. Outdoor Exhibition includes Neolithic cottage models, exploration paths, and Ssangho Wetlands, whose nickname of “the dancing reed bed” comes from the mysterious sight of the reed bed rising over the wetlands like an island, dancing to the winds.