Origins of the Greenbrier River Trail is the theme for a National Trails Day Hike at Cass Scenic Railroad State Park. Meet at the beginning of the Cass Section of the Greenbrier River Trail (GRT) for an informative hike about the history of the GRT from railroad to rail trail. This event is part of the National Trail Days hiking program. (Approximately 1 to1.5 hours, and 2 miles + of even easy walking) 2:00 p.m. start time. Event information: Monica Fleming, 304-456-4300, ext.111 - please leave a message or email [email protected] with questions.