TRAIL CLOSURE MESSAGE: The only section of trail that is OPEN in this feature trail is the Santee Branch Trail. All trails leading down to or connected to the Grist Mill Trail are CLOSED. The Grist Mill was badly damaged in the June 2018 Ellicott City flood. The Swinging Bridge is only open to view the river. You can't cross over from side to side. The footbridge and much of the Grist Mill trail has washed away.