Anybody recognise themselves here (attached)! I was on the bank of the Don, looking up at the Doncaster avoiding line on Sprotborough Ings viaduct. I'd previously been round to this footbridge a little way NE on the avoiding line and discounted the shot as it was too much into the sun and you couldn't see the viaducts. Then I noticed three figures hanging round in the far distance!
Luckily the Beverley Humber tour with the three 37s was close enough to time for me to walk back up to the main road, bus to Conisborough, walk down to the station, train to Swinton and walk to the bridge N of Swinton just in time for Union of South Africa to shoot through towards Moorthorpe. Nice when a plan comes together.