This out-and-back trail is open year-round and is a showcase of the beautiful trails in middle Tennessee. The trail follows the shore of Percy Priest Lake for most of the route, and there are frequent views of the water. It is the longest trail at Long Hunter State Park. The Volunteer Trail and the Day Loop have their own parking lot and a clear distinction of where the trailhead begins. The Volunteer Trail leads to a pair of primitive backcountry camping sites, which is the turnaround point.

Il Sentiero del Grifone si sviluppa su carrarecce e sentieri pedemontani stanti il versante sud del massiccio Velino-Serra in una cornice naturalistica e archeologica di alto pregio. Il percorso è attrezzato e segnalato nei comuni di Scurcola Marsicana, Magliano dei Marsi e Celano