Calendar Categories Building Tours Exhibits External Tours Kids Activity Day Meetings Museum Closed Noon Concert Starlab Posterboard Agenda Day Month Week Posterboard Stream April 2019 Apr 2019 Apr 30 Tue Into the Pit: Quarry Tour Apr 30 @ 10:00 am 10:00 am Tickets Take a Trip Into the Pit This Summer! Take a trip Into the Pit of a Concrete Materials quarry on Tuesdays this April! Minnehaha County has a long history in the quarry industry, from the[...] April 2019 Apr 2019 Subscribe to filtered calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML