London 2012 Olympic venue Hadleigh Farm and 2014 Commonwealth Games venue Cathkin Braes will host the final round of the 2013 British Cross Country Series and the 2013 British Cross Country Championships, respectively.
Domestic racers will have the chance to compete on two world-class mountain bike courses as part of the British Cycling co-ordinated events delivered in partnership with regional organisers.
The five round British Cross Country Series features races for everyone from under-12s to over-60s and remains the pinnacle of domestic mountain bike competition.
All events have been submitted to the UCI for classification, allowing British riders the opportunity to qualify to race world cup events.
The format for the series weekends will be unchanged, with practice on Saturday and racing on Sunday.