From Yarm.
Head out past the Tall Trees and stay on this road till you get to the T junction, turn right for Darlington and follow the road for about a mile, turn left heading for Richmond and Scorton.
Follow the road, after the railway bridge it is on your left. It is signposted, I'm sure it's not far from the railway bridge.
If you stay on this road it also takes you to green lane on the right before the old military place where they have the car boot sale.
Mark