Show on mapThe Cleveland Railway opened in 1861 as a freight line for the local ironstone mines, but the route quickly became duplicated and redundant and closed in 1873, after only 12 years of use.
This sandstone wall marks where the line crossed over Flatts Lane as it turned North towards Middlesbrough.
An excellent account of the Cleveland Railway can be found in Andrew Pearson’s comment on this previous post
Where is this wall please I go through flats lane everyday
On the right about 100m before you reach the Guisborough bypass (see link)
https://goo.gl/maps/dmTVEU46wBq
There is at least one more further along towards guisborough where farm access roads cross the line
Thank you Chris