The B9166 is a short road at the eastern end of Easter Ross.
The road starts at a TOTSO on the B9165 on the eastern edge of Fearn and heads southeast across the Loans of Tullich. The terrain is flat, with the exception of the Hill of Nigg, visible to the right. We pass the former RNAS Fearn, now returned to farmland although a number of buildings, not all derelict, still remain.
It's not long before a T-junction is reached, where we TOTSO left and then right almost immediately. The road now narrows as we enter Balintore along Hill Street. We pass a couple of residential roads but only a few houses front onto our road. The end is reached at another T-junction, within sight of the sea. The village centre is to the right.
Originally everything to the north of Inverness was in Zone 8 with our road being the B866. In 1935 the A9 was extended north of Inverness and so the road was renumbered with a new in-zone number.