Mariposa County Sheriff's Office to Host a September 11th Memorial Ceremony on Sunday at the Mariposa County Art Park at 10:00 A.M. Details Last Updated: Sunday, 11 September 2022 08:07 Published: Sunday, 11 September 2022 08:07 View Comments September 11, 2022 - The Mariposa County Sheriff's Office will host a September 11th Memorial Ceremony on Sunday at the Mariposa County Art Park at 10:00 A.M.Source: Mariposa County Sheriff's Office View the discussion thread. back to top