Not ideal for road bikes but if you have got this far well done! Sorry I couldn't change the highlight. Most other bikes with wider tires would reach this far from the sealed road to the West.
A nice place to stop for a rest or for the evening. If travelling Route 10 from West to East, this appears at the end of the forestry track before you turn back over the river into England and up a short steep section of single track to rejoin the forest road in Kielder Forest.
Access to the river is a bit better here than further West and if continuing it is the last good source of water before you arrive at Kielder after another few miles. I chose to continue on as there was nowhere to hang my hammock but there was easily enough room for a few tents.