This is an odd story that took a while to get to the details (the article needed better maps to explain) - a plan to reopen a disused railway, the Waverley Route may cause a legal headache due to a border crossing between England and Scotland.

A THREAD.. https://www.scotsman.com/news/transport/historic-border-anomaly-poses-intriguing-new-twist-re-opening-edinburgh-carlisle-rail-line-3027524

The line starts in Edinburgh, and passes into England near the town of Newcastleton just north of Carlisle.

Seems fair enough - one border, what's the problem?

2/5

The border at this point runs down the middle of the river - but when they built the railway in 1862, to keep a straight line would have meant a bridge being built over a curve in the river.

A pain.

So they shoved the river to one side!

3/5

The river moved, but it seems that might not have told anyone, so the border was never updated.

There is now a tiny bit of railway inside Scotland that should be inside England.

Can you imagine the regulatory nightmare this could cause?

4/5

A decision 160 years ago to save a bit of money could now keep lawyers very busy (and rich) indeed.

If Scotland goes independent, a few yards of track in the middle of an English railway is now Scottish.

Nightmare!

5/5

https://maps.nls.uk/geo/explore/side-by-side/#zoom=16&lat=55.06014&lon=-2.93832&layers=168&right=BingHyb