The Doug's Run sign is on Aspen Mountain.  For more on this sign, see this March 1, 2017 Aspen Daily News letter-to-the-editor:  http://www.aspendailynews.com/section/letter-editor/174455   Photos of this sign are needed; if you have one you would like to share for use on this page, please send to aspenshrines@aol.com.  Thank you.