The B6461 is a local cross country route along the Scottish Borders. It starts on the A699 in Kelso, and heads east through the middle of town, including a brief multiplex with the A6089. The road crosses the Eden Water at it passes through the villages of Ednam and Eccles. There's a multiplex with the A697 on its run through the borders, while the road continues in a reasonably straight line before a sharp left / right at Swinton.
In Swinton there is a short multiplex with the A6112 along Main Street through the village. The B6461 then twists and turns through open country until it reaches the junction with the B6460 near Paxton. Dropping down towards the Tweed, the road crosses the English border into Northumberland, ending on the A1 Berwick Bypass.
At the time of first classification, what's now the B6461 was the B6356. However, by 1932, it had been upgraded to become a continuation of the A699, which survived as such into the 1960s. This may go some way to explaining the duplicate number used for the route.
The eastern end of the road, which ended on the A6105, has been partly reused for the Berwick Bypass, while the remainder is a short local access route.