President Nelson taught, "Good inspiration is based upon good information." If you are a Latter-day Saint and haven't read Oliver Cowdery's 8 essays on Church history, including Letter VII, you need to read them to understand Church history, the Book of Mormon, and the related teachings of the prophets.
In the 1930s the TVA & WPA excavated many mounds in the Tennessee Valley prior to new dams flooding hundreds of ancient sites. This "structure" was found at the bottom of a large mound that was 130 x 110 feet in diameter near Speedwell, Tenn. They found that a series of 8 different large buildings had been made on this spot over a vast time period. When a building was burned, burials were made, it was then covered by a layer of dirt and then a new building was built. When it burned burials were made and a new building was made. The "first" building (shown here) was made from huge logs (the post holes are along the sides) tilted inward. It was a 55 x 27 feet building (1,485 sq. ft). The mound, which they asserted had been plowed down to only half its original size, was one of several there and a large village with at least 1000 residents was located around the site. From: Bulletin 118; Smithsonian BAE (1938).