The Grist Mill Trail in Patapsco Valley State Park (PVSP), which has been closed for months while undergoing renovation work, has now reopened. Hikers and hike leaders can now resume using this relatively flat paved trail on their hikes. The PVSP web site notes that the park will continue to do small projects along the trail like removing and adding split rail fencing, mowing, and tree work. Access to and from both tunnel trails are on the down steam side of each bridge.