The North Iowa Bulls hockey team began to play in Mason City during the 2011–2012 NA3HL season. The Bulls won the Silver Cup in 2013, 2014 and 2016. They have also gone on to win the Tier III National Championship in 2013 and 2015. The North Iowa Outlaws junior hockey team began play in the North American Hockey League in 2005. They were in Mason City until 2010, when they relocated to Onalaska, Wisconsin to become the Coulee Region Chill. The former North Iowa Huskies played in the United States Hockey League until 1999.