|Location Map ( geo)|
|Distance:||12.8 miles (20.6 km)|
|Meets:||A75, B725, B721|
|Route outline (key)|
The B724 runs southeast and east from the A75 near Collin to a junction with the B721 west of Annan. It is part of the Galloway Tourist Route from Ayr to Gretna Green and is often called the "Low Road" (as distinct from the parallel A75) by locals. Originally unclassified, it had gained its present number by 1932.
After turning off the A75 the road heads southeastward, and is characterized by long straights running through generally flat countryside (though early on there is a 50 mph limit on the short section past the hamlet of Greenlea). After skirting the village of Mouswald the road passes over the Annan to Dumfries railway line at Skewbridge, marked by a very shallow reverse curve.
Just before reaching the village of Clarencefield, we meet the B725, coming in on the left from Carrutherstown, back on the A75. 1500 m later – after we have followed the dead-straight main road through Clarencefield (30 mph limit in the built-up area) – the B725 sets off again at a right turn towards Caerlaverock, while our road curves left to follow a somewhat more easterly course.
After passing close to Ruthwell, home of the Savings Bank Museum, the B724 – its course a little more bendy now – twice passes beneath the railway. The second bridge (with a height restriction of 4.5 m) marks our entry into Cummertrees, which lies close to the north shore of the Solway Firth. Leaving the main part of the village and passing under a third, still lower bridge (4.1 m), we reach, on our left, Cummertrees Primary School, which stands amid fields over a kilometre from the village centre. From here a final 3.9 km, largely paralleling the railway line just to our south brings us to the end of the route at a junction with the B721 at Howes on the outskirts of Annan.