The C466 is a very strange road which only makes sense when you look at its history. Originally it started in the centre of Auchterarder and follows Ruthven Street south to the station, continuing a short distance further to the junction at Lochie. However, first the station closed and then the A9 bypass was built, severing the route. Today, therefore, the C466 is a road which really goes from nowhere to nowhere. The itinerary provided by the council is not as clear as it could be, but suggests that the route now starts at the pedestrian underpass on the A9 and heads east, then south to Lochie. Along the way, it meets a spur of the C465, which appears to have been added to connect the two routes (the road itself pre-existed the bypass).