There are three "Spirit Nests" on top of Aspen Mountain.  They were created by Jason Fann.  They were new for the 2015-16 ski season.  See these two pages for more information:  https://www.facebook.com/Spirit-Nest-Creations-by-Jayson-Fann-425035750890633/timeline and http://blog.aspensnowmass.com/aspen-mountain-spirit-nests/   Several photos are below (click on images to enlarge). To see even more photos of the Spirits Nests, which were taken by the author on December 6, 2015, click on this Facebook photo album (you do not need to have a Facebook account in order to view the album):  https://www.facebook.com/media/set/?set=a.955095124562452.1073742037.100001859201674&type=1&l=8df4317ecb

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Click on images to enlarge.