<nods respectfully towards Adam>
I respectfully have to disagree with the learned gentleman.
The south-side slopes are gradual.
The north-side slopes are steep.
The east/west slopes (such as Rosedale chimney) are vertical.
white horse bank is an anomaly and doesn't cross the moors.
There are only about 3 roads running north-south (discounting the valley roads that rise to join the main routes).
Last year we took the most major of the roads, which was damn near deserted at night. It's also the most gentle route, so gentle in fact that the learned gentleman managed to ride it without realising he was carrying many kilograms of totally superfluous luggage. What was it again? A complete set of timetables for the UK, a transformer and a hammer?