The route starts at Parliament Square in the middle of Ramsey, where the A3 and A18 also terminate, and heads north on Bowring Road to cross the Sulby River. Older housing, much of it large and detached, lines the road as it works its way north through the town, passing a left turn for the A13, and then a right turn for the A10. The town is soon left behind, and the A9 turns to the north east to pass through the tiny settlement of Dhoor and on to Regaby, where the B7 turns left at a crossroads. In truth, these places are barely distinguishable from the general scatter of properties along the roadside as it winds through the fields.
Still heading generally north west, the route continues to meander through the fields, with a couple of short straights giving a little relief. The B14 comes in from the left at a sweeping bend as the route enters Andreas. A short run along Andreas Road leads to a TOTSO junction, where the B6 continues ahead, but the A9 turns left, staying on Andreas Road, and quickly comes to an end at another TOTSO, this time with the A17 in front of the school.
The Manx Government Circular 1131 of 25/02/1926 defines this route as: Ramsey boundary to Andreas Village via Regaby Gate