Yes about Tower Road and the Dwarf Road. I forgot to put the compass and scale on the map. North is straight up.
It's about 24 miles as the crow flies between Threshold and the Lost Mine. It's about 5 miles to the crossroads where Tower Road joins the Dwarf Road. Hope that'll do until I find the time to edit the map.
The forest and river in the area are unnamed—or at least, if they had names before the time of the Dragon they are now forgotten.
There is an abandoned village not far from the road southeast of the river crossing.
There is also rumored to be a ruined manse somewhere in the area, though opinions differ as to whether it is somewhere near the road or along the river.
There is a camp for loggers and hunters in the forest near the river crossing, but its location changes periodically.
The soldiers at the tower guarding the crossing are supposed to patrol, so they may know more of the area than those in Threshold.
It is nearly 50 miles to the river crossing.