|Location Map ( geo)|
|Distance:||2.7 miles (4.3 km)|
|Route outline (key)|
The C31 starts on the A81 near Gartness, quickly passing through the village as it heads west, then turning north to reach the A811 on the Drymen bypass. The route used to continue into the village, terminating at the square, but is now cut by the bypass, although the NCN7 cycle route does cross the bypass on Gartness Road.