The Greenbrier River Trail is an amazing and gorgeous ribbon, that gracefully follows the Greenbrier River southward from Cass, WV to Marlinton, WV and beyond. The race is timed to occur with the peak fall color change in Pocahontas County, WV. The trail follows the river the entire way and passes through two tunnels. The trail is a rails-to-trails project and regularly gets national attention and 5 star reviews. The GRT Marathon is all downhill, so a PR is almost guaranteed!!