Memorial Walk-a-thon Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: May 28, 2021 – May 31, 2021 all-day 2021-05-28T00:00:00-05:00 2021-06-01T00:00:00-05:00 Contact: Fort Abraham Lincoln State Park Event website City of Mandan General Community Morton County This is a bonus hike in the 12 months 12 hikes challenge.