I presume the road following the railway north from Horton offers good views for train spotters, and they've had a tendency to park on the approach road to the station – something must have inspired these signs. No, not the one implying train spotters are overweight.

The Settle to Carlisle railway, with a station at Horton in Ribblesdale, means the Yorkshire Three Peaks are very accessible: London is only four hours away and Leeds a mere 1¼ hours. This accessibility for day trips may partly explain why I encountered walkers with an unfamiliar manner in April; they were very different to those in the Lake District.

Incidentally, Lancaster is closer, but the designated connection, via Keighley, is impractical – that trip takes about three hours each way. Leaving the first train at Giggleswick, travelling ~2 km by road to Settle then catching an earlier train from there must be possible, though I haven't tried it myself; as usual, I found it quicker (and more pleasant) to leave the train at Clapham and cycle.