Facies models of two coalfields in Canada have been developed through seismic facies analysis. Fluvial-deltaic Upper Cretaceous coals near Camrose, Alberta, are characterized by hummocky, subparallel, high-amplitude reflections that are laterally continuous over distances of several kilometers. Deposition in an extensive delta-plain swamp is inferred. Coals of Pennsylvanian age in the Pictou coalfield, Nova Scotia, occur in two distinct seismic facies. Parallel to subparallel, relatively continuous reflections are interpreted to define a basinal facies comprising thick coals and lacustrine sediments. Basinal margin facies contain a greater abundance of variable clastic sediments and are recognized by discontinuous, subparallel to chaotic reflections. Further improvements n stratigraphic analysis will require synthetic seismograms to analyze individual reflections in terms of the thickness and separation of seams, and to enable interseam multiples to be recognized.