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Source: Sacramento-San Joaquin Delta Historical Ecology Investigation: Exploring Patterns and Process, by the San Francisco Estuary Institute - Aquatic Science Center (sources)
Interactive map by KQED QUEST, the San Francisco Estuary Institute - Aquatic Science Center, and the Bill Lane Center for the American West, Stanford University
Credits: Lauren Sommer, Alison Whipple, and Geoff McGhee (full credits)