This track starts at Erica and travels across the Thomson dam wall. It travels along Walhalla - Aberfeldie Rd until turning right onto Merringtons Trk. The track into Merringtons is easily negotiated by a 2 wheel drive vehicle. There are tracks in all directions at The Junction where it crosses the Aberfeldie River. Continue on Junction Trk which climbs steeply out of the river. Turn right onto Donnelly Creek Rd which crosses the Donnelly Creek at Jorgenson Flat. The track is rocky and a little narrow in places and follows the Donnelly Creek all the way to O\'Tooles Flat.