This is the V bar V Heritage Site Solar Calendar area on rock art panels 4 and 5. On October 3 or 4, 2018 the upper shadow rock necessary to create shadows depicting optimal planting dates for the Sinagua pre-historic indians fell to the ground evidently due to natural causes.
This model can be compared to FS0550 which is the same area 2 years prior to the rock fall.
https://sketchfab.com/models/50ac951d0132412cbf9873b3d8a527e4
V bar V is open Friday thru Monday from 9:30am to 3:00pm.
Additional information about the Red Rock District of the Coconino Forest can be found at the following web sites
http://www.sedonaredrocktrails.org/
http://www.fs.usda.gov/recmain/coconino/recreation
Information about volunteer opportunities in the Coconino Forest including the creation of the 3D models and other projects can be found at
http://www.friendsoftheforestsedona.org/