Map of the North China Plain during the Late Shang period
Own work, using

Modern coastline, lakes and rivers from Natural Earth 1:10m Physical Vectors
Contours derived from 2-Minute Gridded Global Relief Data (ETOPO2) v2, NOAA National Centers for Environmental Information, using gdal_contour (from GDAL).
Ancient coastline, lakes and rivers from
Tan,  Qixiang , ed.  (1982)  The Historical Atlas of China, 1, China Cartographic Publishing House   Maps 15–16, 17–18.
Liu, Li; Chen, Xingcan (2012)       The Archaeology of China: From the Late Paleolithic to the Early Bronze Age, Cambridge University Press  ISBN:  978-0-521-64310-8.  Fig. 10.1 (p. 351), Fig. 10.7 (p. 364), Fig. 10.8 (p. 365).
Archaeological sites from
Liu &amp; Chen (2012).
Campbell, Roderick (2014)       Archaeology of the Chinese bronze age: from Erlitou to Anyang, Cotsen Institute of Archaeology Press  ISBN:  978-1-931745-98-7.  Map 5.1 (p. 130).
Conversion to SVG using svgis.
Kanguole