https://geoscan.nrcan.gc.ca/starweb/nrcanphoto/servlet.starweb?path=nrcanphoto/nrcanphotofastlink_f.web&search1=R=61876
Natural Resources Canada, 5 juin 2022
Kabanov, P B, Fig. 5D. Network of burrows and residual sedimentary lamination protruding from corroded limestone walls in lower canyon, Natural Resources...
Photographie