Here are some images to illuminate 'Thunder, Perfect Mind'
They are a bit jumbled.
The first is of the marshland.
The second of the new bridge built where the railway bridge once was.
Then maps - from 1920, showing
From 1797, showing canal.
And from 1750 showing neither.
Then there is one of the soot stains under the bridge where I sheltered from the thunderstorm.
Finally the thunderstorm itself as it rolled in.