We ended up on this road attempting to cross the bridge from the south side of the river. Most maps show that the Little Slocan River South FSR will connect to the Little Slocan River Basin FSR via this road/bridge. However there is a large locked gate on the south side of the bridge. We had to turn around.
I was using the backroads mapbook layer in Gaia, which is labelled little Slocan River South FSR. It's pretty degraded and a section may also be deactivated? The issue though is where it connects with