LC Subject Heading: Slate quarrying--Maine--Monson
Item 78775
Visitors at the Monson Slate Works Quarry, ca. 1880
Contributed by: Monson Historical Society Date: circa 1880 Location: Monson Media: Photographic print
Item 78790
Panoramic view of Portland-Monson Slate Co., Monson, ca. 1900
Contributed by: Monson Historical Society Date: circa 1900 Location: Monson Media: Photographic print