Our staff and volunteers work hard to make sure that your experience at the Mariposa Museum & History Center is the best it can be. That is why we are always coming up with new events and exciting exhibits. We care about our guests, and we need the support of donations in order to keep offering the best experience for the public.  Part of our mission is to preserve and protect history for future generations, as well.  Please make a donation today. The Mariposa Museum and History Center, Inc is a 501 (c) (3) nonprofit organization and your contribution is tax deductible.