I liked the original relief map, but wanted just the Northern loop, not the GP circuit as well, because that's what I rode on when I visited for Touristenfahrten a few years back.
One session of minor butchery of the high-relief version of the model in Fusion later, and there we go.
The print on this Thing was done at 150% (and with a glitchy printer. Scuse the ripples).
0.2mm layers, 0.4mm nozzle
Printed without cooling to avoid it trying to warp off the bed.