http://www.startribune.com/10-magical-places-in-minnesota-that-look-like-the-north-pole/406306605/

https://www.usatoday.com/story/news/nation/2014/01/05/minn-festival-gives-beginners-chance-to-scale-frozen-walls/4322659/

http://www.startribune.com/a-mega-list-of-outdoors-activity-for-a-minnesota-winter/405477886/