Selena Mederos, Basil Tikoff1 and Viki Bankey: Geometry, timing, and continuity of the Rock Springs uplift, Wyoming, and Douglas Creek arch, Colorado, Rocky Mountain Geology, Volume 40, Number 2, p. 167-191, December 2005 AbstractArchived 2011-10-02 at the Wayback Machine
"Showdown in the Great Divide". National Wildlife Federation. October 1, 2006. Archived from the original on October 31, 2014. Retrieved December 10, 2013.
Selena Mederos, Basil Tikoff1 and Viki Bankey: Geometry, timing, and continuity of the Rock Springs uplift, Wyoming, and Douglas Creek arch, Colorado, Rocky Mountain Geology, Volume 40, Number 2, p. 167-191, December 2005 AbstractArchived 2011-10-02 at the Wayback Machine
"Showdown in the Great Divide". National Wildlife Federation. October 1, 2006. Archived from the original on October 31, 2014. Retrieved December 10, 2013.