Does it not say inside somewhere? I’d have thought they’d have to name it for copyright or even just to publicise it.
Can’t help though - sorry. The map went into paper salvage because it wasn’t worth keeping - I did check first but it has swathes of Scotland apparently without any sites at all, when I’ve enjoyed MH trips to these ‘empty’ areas staying at sites on the UKCS map (independent but obviously not CSs).