... to David for offering me this artwork. Not a bad motto for the Big Railway, methinks, nor even for MERG" A close inspection of. photo 1 shows quite a lot of 'delay minutes", All the textbooks on colour light signalling emphasize the placement of the red aspect at the bottom of the signal head. This is said to make it not possible for snow pileup on the hood below to block sighting of the red. Now examine the bottom two photos carefully. hmm. Regards, Rodney Hills Attachment: attach_2647_3228_image.jpeg 208 Last edited on 3 Mar 2018 09:11 by rodney_hills posted: 3 Mar 2018 15:48 from: Nigel Brown Cwm Cywarch is a dead-end valley north of Dinas Mawddwy. It provides two good routes up Aran Fawddwy from the south, and the crags at the head of the valley are favoured by rock-climbers. 528_031047_200000000.jpg http://www.geograph.org.uk/photo/4401017 Last edited on 3 Mar 2018 19:39 by Nigel Brown posted: 3 Mar 2018 19:25 from: Martin Wynne ...