The road measures 10.49 miles long and would take a car obeying speed limits 18 minutes to travel its length.
The B4319 is a B Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like Angle, Castlemartin, Merrion, Bosherston, Stackpole, and PEMBROKE.
The road is located entirely within Dyfed.