Frank H. Shurtleff carrying vat to sugar house where sap from sugar maple trees is boiled down into maple syrup. The… https://www.rawpixel.com/image/12242763/photo-image-face-cows-plantFree Image from public domain licenseCleaning vats used in production of syrup from sorghum, Lake Dick Project, Arkansas by Russell Lee https://www.rawpixel.com/image/12167145/image-person-art-vintageFree Image from public domain licenseScooping up the resin from settling vat. Resin is then poured into barrels for shipping. State Line, Mississippi by Russell… https://www.rawpixel.com/image/12167163/image-person-art-vintageFree Image from public domain license