The Underground Railroad wasn't a literal railroad, so there were no tracks. It was a metaphor for the routes that escaped slaves took on their journey North.
Dugtrio! After you fix the railroad in the Cavern Zone, walk around and look for him. Sometimes he is underground so just look carefully.
junk it
I was able to fix mine by vacuuming out the tracks and lubing the jack screws. No problems now (with the moonroof that is).
nobody could fix it again.
To stop mining ;)
Dig it up.
I would say, from a few websites I found, that 11,000 Chinese people worked on the railroad. They worked the hardest and had great skills to work on hard to fix problems they used to fix for the Great Wall of China. -KKBURT
Fix the power plant.
Was hoping this reference site could answer that question- apparently not
More information needed. Is it visible, is it underground, is is plastic, is it metal pipe - -
Many times the seat in an automobile won't slide because there are things stuck in the tracks. Pens especially get lodged in the track. Check the tracks and clear out any debris.
1- Clean Tracks 2- Grease Tracks 3-Replace Rollers and Tracks There are also adjusting screws located on the doors to lower and higher the rollers. They are located on the edge of the door near the bottom and near the top. You can try that also.