Muskingum Park March 16, 2023 Location 310 Front StreetMariettaOhio45750 Next Event 238th Anniversary of the Ordinance of the 1787 Celebration - July 9, 2025 - 10:00 am Upcoming Events 238th Anniversary of the Ordinance of the 1787 Celebration - July 9, 2025 - 10:00 am