Mammoth Site, Hot Springs

The Mammoth Site in Hot Springs is a paleontological facility displaying skeletal remains of approximately 60 mammoths that died in a natural sinkhole over 26,000 years ago. The fossils are housed indoors and continue to be studied by researchers.

The skeletal remains were accidentally discovered in 1974 during construction work, spurring development of a scientific research station. The site then underwent systematic excavation and became a permanent educational facility.

Scientists and Earthwatch volunteers from multiple countries participate in ongoing excavations, contributing to international paleontological research and education.

The facility offers self-guided tours and interactive exhibits throughout the year. Visitors should allow time to explore the displays and can inquire about active excavations that are sometimes open to observation.

Three woolly mammoths and about 57 Columbian mammoths perished here after sliding into the steep sinkhole and becoming trapped. This mix of different mammoth species in one burial site is uncommon for paleontological sites.

Location: South Dakota

GPS coordinates: 43.42470,-103.48300

Latest update: December 7, 2025 20:21