https://www.michigan.gov/dnr/things-to-do/calendar/2026/05/23/grand-mere-state-park-volunteer-stewardship-workday
Grand Mere State Park - May 23, Volunteer Stewardship Workday
Join in the effort to keep this beautiful corner of Grand Mere free of invasive species! Volunteers will help remove garlic mustard from the trail and...
grand mere state parkmay 23volunteerstewardshipworkday