Rough Guide to Race Slopes
Here you'll find lots of useful information about the many artificial ski slopes (plastic and snow) around the country which are used for racing. You'll find directions to the slope, description, catering, loos, where to stay, and so on. At the bottom of the page, there is also a KML file which contains the locations of all the ski facilities in the UK which you can load into Google Earth to help you find the slopes.
Google Earth Ski Slope locations - use this to locate all the UK's ski slopes on Google Earth - you can also convert this to POI files for your SatNav by using the tools at GPS Data Team. Note that some slopes have extra entries showing the location of their carpark or vehicular access points.