As of Friday, June 12, 2020, Missouri Mines State Historic Site is open for the public with recommended safety precautions and social distancing measures in place. Hours of operation include 10 a.m. to 4 p.m. on Fridays and Saturdays, and 12 p.m. to 5 p.m. on Sundays. The museum will be open to individuals, families and small groups – no scheduled group tours. For more