Sod houses on the Canadian Praries - circa 1886

As every green roof enthusiasts knows green roofs have been around for centuries. One particular type, sod roofs, have been commonplace in Scandinavia since prehistory. Did you know they were built in North America too? A few months ago I stumbled upon this picture in the Concise Historical Atlas of Canada.

Above the picture it reads "Sod house, oxen and hay rack. Killarney, Manitoba. Photograph, circa 1886." And below the photograph: "Courtesy J.A. Victo David Museum, Killarney, Manitoba/Western Canada Pictororial Index, Winnipeg, WCPI 354-11394".

Another resource to add to my bibliography for when I write "The history of North American Green Roofs, pre-1970"!