M. J. Orchard

• Geology and mineral deposits of the northern Kechika Trough between Gataga River and the 60th parallel
• Geology and mineral deposits of the northern Kechika Trough between Gataga River and the 60th parallel
• Permian conodont biostratigraphy of the Harper Ranch Bed, near Kamloops, south-central British Columbia
• Permian conodont biostratigraphy of the Harper Ranch Beds, near Kamloops, south-central British Columbia