The road measures 9.82 miles long and would take a car obeying speed limits 18 minutes to travel its length.
The B4320 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, Rhoscrowther, Hundleton, Monkton, and PEMBROKE.
The road is located entirely within Dyfed.