In reply to David Hooper: David, you only had to ask.
Cutgate's cool
Doethie Valley is amazing
Lonscale Fell in the Lakes is amazing. As is the stuff around Stephenson's Ground in the Duddon Valley
Bowderdale in the Howgills is to die for.
Some wicked stuff on Hexham Common.
Also Crug Mawr in the Black Mountains.
Some seriously good stuff around Leith Hill/Holmbury in the North Downs
Also around Nettlebed in the Chilterns
Dartmoor - check out Lustleigh Cleeve area and out to Bennett's Cross
Just about everything in the Quantocks - particularly Smith's Combe
Slighachan, Skye
Harris is oozing with great stuff - some of the best I've ever ridden.
Rosedale in the North York Moors - although it's getting a bit worn out now
I'm sure I can come up with loads more!
T