*All images are linked to their original source.

"Gold Panning on the Kenai Peninsula." Alaska Outdoor Journal. Visual Media Design & Alaska Outdoor Journal, 2010. Web. 27 Nov.
            2013.http://www.alaskaoutdoorjournal.com/Activities/Goldpanning/kpgold2.html
Klien, C.  (2002).  The Manual of Mineral Science. New York, NY: John Wiley & Sons, Inc.
Knight, R. D.  (2013).  Physics for Scientists and Engineers: A Strategic Approach (pp. 324-328).  New York, NY: Pearson.
"placer deposit." Encyclopedia Britannica.  Encyclopedia Britannica Online Academic Edition.  Encyclopedia Britannica Inc., 2013.  Web. 27 Nov.
            2013.  http://www.britannica.com/EBchecked/topic/549236/placer-deposit
"sluice box."  Encyclopedia Britannica.  Encyclopedia Britannica Online Academic Edition.  Encyclopedia Britannica Inc., 2013.  Web. 27 Nov.
            2013.  http://www.britannica.com/EBchecked/topic/549236/sluice-box
Turril, C. B. (1876).  (Chapter X)  California Notes. (1876). Retrieved from http://www.sfmuseum.net/hist9/turrillgold.html.