to buildings in Newfoundland probably of Viking origin. Modern origins date back to the mid-1800s in southern Wisconsin, the Ottawa Valley and along the St. Laurence River in Quebec. The current revival, as with other natural building forms, began in the 1970s (Chiras, 2000). There are three main methods of cordwood masonry building. The first is the infill method utilizing a post-and-beam framework, similar to that of many straw bale buildings. The second is stackwall construction, historically popular in Canada, in which the corners are built firstout of regular cordwood units called quoins which are criss-crossed on alternate levelsand then the sidewalls are built in between in the normal way. The third method is the curved wall or roundhouse method. This, like stackwall, is also a load-bearing method where the whole wall is built like stackwall infill, with the curvature of the wall providing stability (see figure 22).