I'm seeing some tree and brush clearing happening east of the intersection of Quicksilver Road and County Line Road 1. I remember reading or hearing something recently about east St. Vrain Greenway construction activity picking up again, so maybe this is a sign of that. A crew was out there working today, on a Sunday!
From the latest map (12 MB PDF), it looks like the Quicksilver Road option discussed last year was not chosen, even though this was mentioned as the most favored route by City staff.
This from today, looking east toward Sandstone Ranch. The Greenway will run north/south (left/right in the picture below) before it eventually turns east. Let's see if the tree below survives.