The Mound builders primary lived in what regions?

The Mound builders primarily lived in the regions now known as the Midwestern and Southeastern parts of the United States. To find this information, you can follow these steps:

1. Start by searching for the term "Mound builders" on a search engine like Google.
2. Look for reputable sources such as educational websites, museums, or scholarly articles related to the topic.
3. Open a few of the search results that seem relevant and reliable.
4. Read through the information provided in these sources to gather knowledge about the Mound builders and their geographical location.
5. Cross-reference the information from different sources to ensure accuracy and consistency.
6. Based on the information obtained, you will find that the Mound builders primarily inhabited the Midwest and Southeast United States.