They were made of steel rails with wood ties.
Railroad tracks are made from steel.
made and monitored slopes in railroad tracks.
The first tracks were wood. Do you mean steel tracks or wood?
great Britain
Trains run on tracks. The tracks are made up of a pair of parallel rails.
it is a frame to support a load like railroad tracks and it is made of wood
There are a lot of railroad tracks in South America.
describe how the railroad tracks laid
Inside mines. Long before railroads were built.
There are 7,021 miles of railroad tracks currently in Egypt
Trestles
train tracks or a railroad