How extensive were hydrological agricultural practices in the ancient Americas? "Prehistoric Maize in Southeastern Virginia" (1965) https://www.science.org/doi

How extensive were hydrological agricultural practices in the ancient Americas? "Prehistoric Maize in Southeastern Virginia" (1965) https://www.science.org/doi/10.1126/science.150.3698.881 https://www.science.org/doi/10.1126/science.150.3698.881 ; in a marsh "Archaeological evidence of intensive indigenous farming in Michigan’s Upper Peninsula, USA" (2025) Science https://www.science.org/doi/10.1126/science.ads1643 https://www.science.org/doi/10.1126/science.ads1643 ; LIDAR identified architectural ridges in forests which would have captured silt when flooded ... citations of: https://scholar.google.com/scholar?cites=16780258226867878827&as_sdt=5,43&sciodt=0,43&hl=en&scioq=Archaeological+evidence+of+intensive+indigenous+farming+in+Michigan%E2%80%99s+Upper+Peninsula,+USA#d=gs_qabs&t=1774025203888&u=%23p%3DUArrKFhTJDAJ https://scholar.google.com/scholar?cites=1678025822686787882... "Satellite thermal data applied to landscape archaeology: Mounds in Michigan (1200–1600 CE)" (2026) PNAS https://www.pnas.org/doi/10.1073/pnas.2528379123 https://www.pnas.org/doi/10.1073/pnas.2528379123 Modern day: https://news.ycombinator.com/item?id=45822936 https://news.ycombinator.com/item?id=45822936 : - Instream River Training - LNC Liquid Natural Clay (flood silt in bags) - River engineering; which beavers used to handle