| A | B |
|---|
| half-faced camp | temporary shelter |
| self-sufficient | able to care for themselves |
| isolated | separated from one another |
| gristmill | ground grain into flour; earliest industry |
| industry | business operated to make money |
| navigable | wide enough and deep enough for ships to travel |
| traces | trails made by animals |
| corduroy roads | made with logs |
| plank roads | made by splitting logs |
| canal | man-made waterway |
| subsistence farming | only having enough for your family |
| surplus | a little extra |
| thresher | separated the wheat grains from the dry stalk |
| abolitionist | people who wanted to end slavery |
| Underground Railraod | routes taken by escaping slaves |
