Blackwater, North Fork - Rt. 219 to confluence with Blackwater River (WV)
The distances for these rapids are a matter of guesswork.
From Bobby Miller:
Starting below the dam at Thomas, the North Fork flows lazily towards the edge of the mountain. The run for the next 3 miles is made up of mostly continuous Class 2 rapids. There is a 6-8 foot ledge underneath a railroad bridge shortly after leaving Thomas that should be scouted.