was done largely under the under the countryside commission, then agency, now part of Natural England
I was involved in discussions back in the IMBA days, as the Yorkshire elements were discussed, and even back then the plan for the Northern section was ‘some way in the future’ despite having been planned to start work in 2000 – throw in the delays so far, and the fact that there are still some gaps in the existing route for horses that have become mired in politics, and I think its still a very long way off.
As I understand it, a lot of the originally suggested northern section got tied up with MOD’s increased use of Warcop ranges and the planned restructuring/removal of common rights on some of that complex, so there was a lot of bargaining chips being thrown round, plus the problems of the huge expanse of pennine NNR meant that much of the route was going to be through the path of least resistance at the bottom of the valley, which again made it all very ‘bitty’ (eg., they would secure a route along two decent stretches of old railway, then mired in endless politics and objections on how to link them, where to cross roads etc.)
IIRC, much of the route from Kirkby Stephen through to Haltwhistle was going to be old mineral rail lines, rather than the pack horse routes over the tops, I always thought that this would be of the great ‘misses’ of the project – the most challenging and most scenic bits of the whole trip were going to be missed, how could you go all that way up the pennines and miss high cup nick for heavens sake ?
From Haltwhistle, the inevitable route was edging Kielder Forest as per the current PW – Stonehaugh, Bellingham, Byrness – personally I think theres better and more picturesque routes through Kielder on a bike, even if they couldn’t get permission to go through Spadeadam.
Even back then we talked in hush tones about the possibility of an ‘unofficial’ MTB version of the northern route that took in the better stuff…