Map of Alaska]. (n.d.). Retrieved October 5, 2017, from www.freeworldmaps.net
[Yukon River Watershed]. (n.d.). Retrieved October 5, 2017, from http://quirkytravelguy.com/history-and-adventure-on-the-yukon-river/
Stevenson, S. (n.d.). [Yukon River from Midnight Dome]. Retrieved October 5, 2017, from http://susanstevenson.com/blog/2009/08/dawson-city-aug-vacation-part-4-of-5/
[UAF students at -49F]. (n.d.). Retrieved October 5, 2017, from http://i.imgur.com/Hhr9KK8.jpg
[North American Boreal Zone]. (n.d.). Retrieved October 5, 2017, from http://www.nrcan.gc.ca/forests/boreal/13071
[Boreal Forest]. (n.d.). Retrieved October 5, 2017, from http://borealforestfacts.com/?p=234
Endres, P. (n.d.). [Aerial view of Chena River winding through downtown Fairbains]. Retrieved October 5, 2017, from https://alaskaphotographics.photoshelter.com/image/I0000.tPWdcRL_Wk
[F-16s at Eielson AFB]. (n.d.). Retrieved October 5, 2017, from http://www.pacaf.af.mil/News/Article-Display/Article/592572/cope-north-13-brings-air-superiority-to-andersen-air-force-base/0
[Charley River]. (n.d.). Retrieved from http://www.alaskaultrasport.com/tours_trips/river_floats.html