Of course technically parking at Crummackdale involves driving along a bridleway to reach the 'usual' parking spot (if you aren't parking at the crossroads) which is why I don't park there...
You can park in the layby on the B6479 (Ribblehead to Horton road) opposite the road up to South House farm, adding a bit of distance and elevation (people should be careful not to block gates or prevent large vehicles for turning out of the South House farm road).