Blackpoint Rd in to NS, but I don't know, haven't checked it)
This is open - https://www.strava.com/activities/2881813000
The trail from 3 Bridges is the start of the somerset county east-west greenway. It will connect to Duke Farms when done (railroad ln)
Then to the D&R towpath.
As a longer alternate than going bushwacking Miller ln off amwell - which i haven't done yet. but have been eyeballing!
(It is owned by Somerset County, but the home off of it is a private residence.)
From neshanic parking lot on Elm St, go over the white bridge, follow mill lane.
Pick up the old rail bed again here - https://goo.gl/maps/JynqqwQzyrWjsPMk8 - rail bed is private property - county is trying to buy it.
(if you want to avoid that, ride the active rail bed - there is a service road - jump on that here - https://goo.gl/maps/9XgWFzzX4UcyeLDt6)
Hop off here - https://goo.gl/maps/N7s26Nv3QZWUu11h6k8
this is the old siding to go into the back for the belle mead depot.
it can be hard to find - alternately, there are trails back there which can be found here - https://www.strava.com/activities/103514811
You'll work your way to here - https://goo.gl/maps/mNy7wZR2jfmRYHw58
This pipeline cut has some wet spots - you'll end up in the field across from the east mountain lot.
There is some sort of gas head/junction there - service road comes up the pipeline,
sometimes the field side is mowed across from the driveway to the lot.