Loading view. There were no results found. There were no results found. Route 28 Greenway Trailhead Events Venues Route 28 Greenway Trailhead 15801 Darnestown Rd Germantown, MD 20874 United States Get Directions The parking lot for the trail is about 1600 feet on the right past the address listed here. The parking lot for the Route 28 Trailhead doesn't have an actual address. Events at this venue Today Upcoming Upcoming Select date. Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file