If departing from the board walk to camp where is the designated area to wait for train?

It stops right in front of the boardwalk. This is Google Maps. Check with Roaring Camp about the timetable. Have a fantastic time!

Joseph Frank is 100% correct with his information:)

The train from Roaring Camp comes in backwards South Bound down the track in the middle of the street adjacent to the board walk. It stops at the South end of the large building connected to the board walk, where the amusement park rides are. It stops for approximately 45 minutes before reversing direction and departing; heading back up the mountain to Roaring Camp.