The C454 climbs steeply up from the B847 at Trinafour, passing through a series of hairpins before levelling out on the moorland hills above. To the west, there are fine views of Loch Errochty, and then the route starts to dip down again, winding around the bogs to cross the railway, and then cross an old bridge over the River Garry. Here, it meets the former line of the A9, and turns left to meet the new dual carriageway a short distance later. Much of this road was built nearly 300 years ago by General Wade as part of his military road network. For more information on this historic road, see Tummel Bridge to Drumochter Road.