Challenge snocross club, an ISOC affiliate, and they have to make snow to make up for the lack of natural snowfall. Canada The Canadian Snowcross Racing Association (CSRA) hosts 5.5 (five full weekends plus one one-day event) regional & regional plus one additional national-only points-paying events across Ontario and Quebec. Owned by veteran promoter Ken Avann, the CSRA is Canada's national tour. Despite being an ISR (the rules body) affiliate, CSRA technical rules differ for various classes, making competition between series' on either side of the border challenging for riders and crew. The Quebec-based SCMX series normally sanctions eight events across Quebec. The Ultimate Canadian Motorsports Association (UCMA) previously known as the North West Racing Association (NWRA) hosts 8 to 10 events in Central and Western Canada, with races held in the provinces of Alberta, Saskatchewan, Manitoba and north-west Ontario. Europe The sport is popular in the Nordic countries, especially in Sweden and Finland, yet its popularity is also growing in former Soviet Republics as well as Iceland and the Alps. There have been several manufacturers in earlier years, but Lynx -a subdivision of the Canadian company BRP, is the only producer left besides the big four; Yamaha, Polaris, Arctic Cat and Ski-Doo (also made by BRP). Racing is competed in several classes, but the most competitive ones are the Pro Stock and the Pro Open. Both are for a maximum of 600 cm³ and for adults at least 16 years old. Video games Polaris SnoCross – N64, PSone Ski-Doo: Snowmobile Challenge – Xbox 360, PS3 Sled Storm – PSone, PS2 Sno-Cross Championship Racing – PSone Ski-doo X-team Racing – PC Sno-Cross Extreme – PC X Games Snocross – iPhone/iPod Touch Mad Skills Snocross – iPhone/Android See also Motocross Snowmobile References External links The International Series of Champions (United States, Canada) East Coast Snocross (United States) Canadian Snowcross Racing Association (Canada) Ultimate Canadian Motorsports Association (Canada) United States Cross Country Snowmobile Racing Association (United States) Winter Thunder Challenge (United States) Snowmobile racing