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Shoal - Wikipedia
What are shoals in a river? - Geographic Pedia - NCESC
What is a Shoal? - WorldAtlas
Shoal | Marine Habitat, Sandbanks & Estuaries | Britannica
The Shoals and the Suwannee River | Florida State Parks
Shoal Definition & Meaning - Merriam-Webster
Shoals - Natural Atlas
Shoal Definition & Meaning | Britannica Dictionary
Flint River Ecology
Channel-shoal interaction - EcoShape