|Location Map ( geo)|
|From:||Cample Bridge (NX884943)|
|To:||Thornhill (W) (NX871954)|
|Distance:||1.2 miles (1.9 km)|
|Route outline (key)|
The B731 is a short link road forming the southern half of a western bypass of the town of Thornhill in Dumfries and Galloway.
It starts at a left turn off the northbound A76 a kilometre southeast of Thornhill, running first westward and gradually turning north before ending at a T-junction on the A702 (former B730) some 500 metres west of the town.
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