Based on the information from the railroad and resource maps you just saw, where would you expect to find most US factories at the turn of the century? Why? (You may want to go back and look again at the maps.)

Answer:

Most US factories at the turn of the century would be in the Northeast and Midwest. These regions had dense railroad networks that made it easy to bring in raw materials and ship finished goods, and they also had concentrated supplies of coal, iron, and oil needed for industry.