C117s (Dumfries and Galloway)
|Location Map ( geo)|
|To:||Shankfoot Bridge (NX746872)|
|Distance:||8.1 miles (13 km)|
|Route outline (key)|
The C117s is a long and meandering route which starts on the A712 at Corsock and heads north, climbing up to run along the hillside above the Urr Water. After a biref deviation around a side valley, the route returns to the Urr, passing above Loch Urr before crossing the watershed and dropping down to the Castlefairn Water. This forms the old county boundary, so at Shankfoot Bridge near Auchencheyne, the route becomes the C117n for the last short section to meet the A702.
The C117s carries an unusual number, as all of the other routes with 's' suffixes are 1 or 2 digits. However, as the C117 crosses the old boundary, it would appear that the Dumfriesshire number was used in place of the Kirkcudbrightshire number to give a consistent through number without a duplication on either side.