Peak District is scattered with them, was out this weekend, as were a group from here - see the Green Laning Section.
Would advise finding a few friends / join a local club though - unless you have a winch or two, anchors and a few friends, laning on your own is a bit un-wise.
(especially round the peaks, at this time of year you're more likely to break something than get stuck - if you don't have a friend to tow you to the road your a bit screwed)