My fave White Peak ride starts from Calton Lees car park in Chats worth, goes up and over Calton pastures and drops down to Bakewell, then up Intake Lane to Haddon Fields and the switchbacks to the river Lathkill (best 30m in the White Peak IMO) then through Youlgreave across the field bridleways to Birchover, Clough Lane and over the A6 to the bridleways that traverse Fallinge Edge, up onto the moors above Chats worth and back down to Calton Lees. Dunno if it’s in any route books, but it’s about 35k and fairly easy to spot/navigate with an OS map