quality:correction, structural:reformatting, linguistic:paraphrasing, stylistic:tone
Mound B

Mound B is located north and west of the six concentric ridges and 2050 ft (625 m) north of Mound A. The mound is roughly conical in form and is approximately 21 ft (6.5 m) in height with a 180 ft (55 m) basal diameter. Dating to sometime after 1700 BCE, Mound B was the first earthwork built at Poverty Point. Built in several stages, charcoal, fire pits, and possible postmolds were found at various levels within the mound. The impressions of woven baskets were preserved in the fill of an upper level of the mound construction. The final stage of the mound construction was a conical silt loam lens that covered the entire mound surface. During excavations in the mid-1950s, a human bone was reported within an ash lens at the base of the mound. At the time, this finding was reported as evidence of a cremation. However, recent research failed to find any evidence of the ash lens. Researchers suggest instead the reported lens represents a fine gray silt common to E horizon soils on the Macon Ridge and often found beneath mounds. The identification of the bone (reported as the proximal end of an infant's femur) has also been disputed and is not curated in any known collection from the site.