2025 GARMIN 1.25K 66,66s,66sr,66i, TOPO MAPS FULL UK walking,hiking maps
You can download and install it from Garmin website by following web link below WORKS WITH GARMIN 66 series. 66,66s,66sr,66i,66st. They are also fully routable if your Garmin unit supports it such as the oregon450 does.