ive managed to find and download snowdon and Ben nevis and both work fine on my oregon but for the life of me i cant find the lake district map
http://talkytoaster.co.uk/maps/british-isles-ireland/
Lots of UK.
https://buy.garmin.com/en-GB/GB/maps/on-the-trail-maps/garmin-gb-discoverer-1-25k-lake-district/prod33287.html