The Beck's Glade Sign is on Aspen Mountain.  Many thanks to Tim Bonner for his help with this one, and the photos. 

Does anyone know who Beck is or was?  If so, please contact the author at AspenShrines@aol.com.  It has been suggested that Beck's Glade was named after Paul Beck, who was with the Aspen Mountain Ski Patrol, but I have not been able to verify this.  See this page:  https://www.aspentimes.com/news/paul-beck-witnessed-aspens-transformation-while-he-grew-up-in-1930s-and-40s/

Note in the 2020 photos below that "Becks Glade" was carved into a block of wood.  Then in the 2021 photos a black and white metal sign has been added.

Photos of the signs are below (click on images to enlarge).