1. Tectonic map of Vernon map-area, British Columbia, showing also distribution of Shuswap rocks and thin contact relations with younger rocks Yale Public content 1959. 2018-07-31T18:50:29Z. 2020-08-14T18:08:38Z. Geological Survey of Canada, issuing body. Depertment of Mines and Technical Surveys. English. cartographic image. Public. British Columbia and Vernon.