'iCloud Drive' missing from Finder (link broken?) in OS X El Cap I'm using Mac OS X El Capitan (10.11.6) on a Mid 2011 Mac Mini.  

My 'link' to iCloud Drive in Finder is missing or broken. I know there is a physical location for the iCloud cache on the local SSD, but I cannot find it. If I could I think I could just add a Favorite to the sidebar. Much thanks.
Looks like I found my answer here: http://usabilityetc.com/2015/07/access-icloud-drive-folder-in-terminal/

The location is:
~/Library/Mobile\ Documents/com~apple~CloudDocs

Now I just need a way to add it back to the sidebar as a favorite...