- FondoMG 146 - W.O. Kupsch fonds
- SériesJ. Audio-Visual Materials
- 130 más...
- ItemWOK 1-137 - Basal coal of Ravenscrag burnt to white ash
- ItemWOK 1-138 - Ferris of Number 1 coal seam at base of Ravenscrag formation
- ItemWOK 1-139 - Ravenscrag Butte, Saskatchewan
- ItemWOK 1-140 - Grey facies with coal seams of Ravenscrag (Paleocene) formation
- ItemWOK 1-141 - Cypress Hills conglomerate overlying Eastend (?) formation
- ItemWOK 1-142 - Cypress Hills (Oligocene) formation overlying buff sand of Ravenscrag
- ItemWOK 1-143 - Cypress Hills formation (Oligocene) sand and gravel
- ItemWOK 1-144 - Coarse facies of Cypress Hills (Oligocene) formation
- ItemWOK 1-145 - Cypress Hills conglomerate near Ravenscrag, Sask.
- 2166 más...