https://geoscan.nrcan.gc.ca/starweb/nrcanphoto/servlet.starweb?path=nrcanphoto/nrcanphotofastlink_f.web&search1=R=471
Natural Resources Canada, 1957
Gadd, N. R., Terrace and scarp cut by the St. Lawrence River at village of Gentilly, Bécancour area 31 I/8, Natural Resources Canada Photo Collection #...
Photographie