From Roader's Digest: The SABRE Wiki
Route
This is one of the ancient 'Mounth' passes from Angus to Deeside. The north end has seen changes of route, as the Durris Bridge over the R. Dee was a private road (with toll) until 1970s. The original route for the A957 ended on the old A943 (at NO724959, now unclassified between Bridge of Feugh and Brighton Farm) South Deeside Road about three miles west of the Durris crossroads, although historically the Slug Road has ended at various points as far west as Bridge of Feugh (Banchory).
Stonehaven By Pass - Crathes
Today the A957 begins at the
A92 bypass, heads into town and passes the Stonehaven bus station.
It then heads north-west out of the town, over the
A90 and follows up the right bank of the Cowie Water which it crosses to reach the village of Rickarton. From here it climbs steadily and steeply up into the Durris Forest to reach a height of 230m (740 ft) before zig-zagging down the northern side of the hills, passed the Crossroads stone circle on the right, to cross the Durris Bridge (river Dee) and meet the
A93 at Crathes.
Michael Anazapela adds writes:
A horrible, winding road that seems to take forever. It's next to impossible to take at any sort of speed, and basically cuts the corner for Royal Deeside so that Deeside bound traffic takes the A957 instead of heading into Aberdeen to join the
A93.
Original Author(s): David D Miller & Lez Watson