Ten historic watermills: Flatford, Houghton, Mapledurham, Sturminster Newton, Winchester City Mill, Nether Alderley, Eskdale, Mabry, Glade Creek and Mingus. Licensed photographs identify the mill buildings. Glade Creek is a recreated structure; Mingus uses a water-powered turbine. This is a selection, not a ranking by age or size. Flatford Mill: Christine Matthews; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0/; https://commons.wikimedia.org/wiki/File:Flatford_-_Flatford_Mill.jpg; resized and fitted to portrait frame; derived image retains the source license. Houghton Mill: martinr532; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0/; https://commons.wikimedia.org/wiki/File:Houghton_Mill_1.jpg; resized and fitted to portrait frame; derived image retains the source license. Mapledurham Watermill: Msemmett; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Mapledurham_Watermill.jpg; resized and fitted to portrait frame; derived image retains the source license. Sturminster Newton Mill: John M; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0/; https://commons.wikimedia.org/wiki/File:Sturminster_Newton_Mill_-_geograph.org.uk_-_4182351.jpg; resized and fitted to portrait frame; derived image retains the source license. Winchester City Mill: Tim Sheerman-Chase; CC BY 4.0; https://creativecommons.org/licenses/by/4.0/; https://commons.wikimedia.org/wiki/File:City_Mill%2C_Winchester.jpg; resized and fitted to portrait frame; derived image retains the source license. Nether Alderley Mill: Andrew Ogram; CC BY 3.0; https://creativecommons.org/licenses/by/3.0/; https://commons.wikimedia.org/wiki/File:Nether_Alderley_Mill.jpg; resized and fitted to portrait frame; derived image retains the source license. Eskdale Mill: itmpa; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0/; https://commons.wikimedia.org/wiki/File:Eskdale_Mill.jpg; resized and fitted to portrait frame; derived image retains the source license. Mabry Mill: Pfolmsbee; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Mabry_Mill.jpg; resized and fitted to portrait frame; derived image retains the source license. Glade Creek Grist Mill: Zachary Knott; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Glade_Creek_Grist_Mill_WV.jpg; resized and fitted to portrait frame; derived image retains the source license. Mingus Mill: Jdcope68; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0/; https://commons.wikimedia.org/wiki/File:Mingus_Mill.jpg; resized and fitted to portrait frame; derived image retains the source license.