MCHS Grizzly Band Receives Donation from Mariposa Chamber of Commerce Details Last Updated: Wednesday, 18 March 2015 02:34 Published: Wednesday, 18 March 2015 02:34 View Comments Mariposa Chamber President, Karen Cutter, presents Mariposa County High School Grizzly Band Junior Drum Major, Sierra Dearing, with a check for $500 for the bands trip to Washington DC this Memorial Day. View the discussion thread. back to top