The road measures 5.17 miles long and would take a car obeying speed limits 6 minutes to travel its length.
The A4137 is a A Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like St. Owens Cross, Glewstone, Llangarron, Marstow, and Whitchurch.
The road is located entirely within Herefordshire.