Mining things such as gold and copper in the west created a large influx of immigration to the west thus boosting the economy there.
Economies were influenced by how near a port the colony was and what type of crops they could grow. Also, a river habitat was ended for beaver fur trade, which was a very profitable venture. Social structures depended on how the people and colonies could connect to each other. This would require rivers or a flat terrain for roads
Answer:
Homes in villages were buried partly underground with straw-covered roofs. Walls were built to protect settlements from flooding and hostile neighbors.
