NEW Birkie Paintball Biathlon – July 28, 2012 – Run or Mountain Bike This Newest Birkie Event The American Birkebeiner Ski Foundation (ABSF) has announced a new addition to its year-round lineup of Birkie Trail events. The ABSF, together with the North End Ski Club of Cable, WI, will host the all-new “click here, email birkie@birkie.com or call 715-634-5025
