Firearms Information As of February 22, 2010, a new federal law allows people who can legally possess firearms under applicable federal, state, and local laws, to legally possess firearms in this park. It is the responsibility of visitors to understand and comply with all applicable state, local, and federal firearms laws before entering this park. As a starting point please visit the following website:
South Dakota Codified Laws (enter "firearms" in search box).
Federal law also prohibits firearms in certain facilities in this park; those places are marked with signs at all public entrances.