The map of the North Pembrokeshire Railway incorrectly shows the order of the stations which should read- Letterston Beulah Halt Martell Bridge Halt Castlebythe Halt.. etc
You will note that Beulah Halt and Martell Bridge Halt should be reversed. citation- Disused stations web site by Nick Catford which not only shows detailed maps but the stations/halts listed on a ticket.Steamybrian2 (talk) 09:53, 15 March 2017 (UTC)
Mitcheldean Road & Forest of Dean Junction Railway
Looking at the map of the line that you have produced, have you positioned Steam Mills Crossing Halt and Nailbridge Halt incorrectly? Have a look at the topography section of the Wikipedia article on that station and also the line template.