Hi there! While you await more answers to your question, you may be interested in this section of our FAQ on technology in the Americas. (The very short answer is that North America -- which includes everything north of Panama, even if some people only think of it as present-day Canada and the US -- had a variety of native cultures, some of whom lived in permanent stone dwellings, some of whom lived in wood, brick or earth structures, and some of whom were nomadic or semi-nomadic.)