Dalles of the St. Croix River. Log Jam. by J E Whitney and Charles A Zimmerman https://www.rawpixel.com/image/14303639/dalles-the-st-croix-river-log-jam-whitney-and-charles-zimmermanFree Image from public domain licenseThe Great Log Jam at Chippewa Falls Boom, April 6th, 1869. Estimated at 150,000,000 Feet. by Charles A Zimmerman https://www.rawpixel.com/image/14303489/photo-image-plant-person-woodFree Image from public domain license[Untitled photo, possibly related to: Spring pulpwood drive on the Brown Company timber holdings in Maine. A jam is forming… https://www.rawpixel.com/image/12293551/photo-image-plant-person-treeFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. Bulldozer clearing a channel in Dennison Bog Brook so… https://www.rawpixel.com/image/12293636/photo-image-plant-person-forestFree Image from public domain license[Untitled photo, possibly related to: Spring pulpwood drive on the Brown Company timber holdings in Maine. Bulldozer… https://www.rawpixel.com/image/12293585/photo-image-plant-person-forestFree Image from public domain license[Untitled photo, possibly related to: Spring pulpwood drive on the Brown Company timber holdings in Maine. A jam is forming… https://www.rawpixel.com/image/12293300/photo-image-forest-tree-woodFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. Bulldozer clearing a channel in Dennison Bog Brook so… https://www.rawpixel.com/image/12293573/photo-image-plant-person-forestFree Image from public domain license[Untitled photo, possibly related to: Spring pulpwood drive on the Brown Company timber holdings in Maine. A jam is forming… https://www.rawpixel.com/image/12293276/photo-image-person-forest-treeFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. A jam is forming here where a few logs were snagged on… https://www.rawpixel.com/image/12293299/photo-image-wood-public-domain-waterFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. Bulldozer clearing a channel in Dennison Bog Brook so… https://www.rawpixel.com/image/12293286/photo-image-plant-person-forestFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. Logs riding high on the extra large "head" of water… https://www.rawpixel.com/image/12293591/photo-image-plant-person-forestFree Image from public domain license[Untitled photo, possibly related to: Spring pulpwood drive on the Brown Company timber holdings in Maine. A jam is forming… https://www.rawpixel.com/image/12293301/photo-image-forest-tree-woodFree Image from public domain license[Untitled photo, possibly related to: Spring pulpwood drive on the Brown Company timber holdings in Maine. A jam is forming… https://www.rawpixel.com/image/12293576/photo-image-plant-forest-treeFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. Bulldozer clearing a channel in Dennison Bog Brook so… https://www.rawpixel.com/image/12293581/photo-image-plant-person-forestFree Image from public domain licenseSpring pulpwood drive on the Brown Company timber holdings in Maine. Bulldozer clearing a channel in Dennison Bog Brook so… https://www.rawpixel.com/image/12293326/photo-image-plant-person-forestFree Image from public domain license