The MonDak Heritage Center is Eastern Montana’s premier museum and the arts & cultural hub of Richland County, Montana. Operated by the MonDak Historical & Art Society, they are a 501(c)(3) non-profit organization with a mission to engage, educate, and inspire our community by preserving and contributing to the area’s arts, culture, and heritage.

Local residents formed the Society in 1967 and opened a temporary museum known as the J.K. Ralston Museum and Art Center in 1972 in the “old hospital” in Sidney, Montana. Named after Ralston, the famed western artist and Richland County native, the Ralston Center operated for twelve years until the museum moved to the MonDak Heritage Center in 1984.

Located at 120 3rd Avenue Southeast, the MonDak Heritage Center is open Tuesday through Friday from 10 am – 4pm and Saturday from 1pm – 4pm.

Facility Rentals

  • Perfect for a meeting space, class space, art show, and more
  • Capacity 250
  • Non-profit/member discounts