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In 1976, the British Columbia Geological Survey, in partnership with the Geological Survey of Canada, initiated reconnaissance stream sediment and water surveys across the province. Originally referred to as the Uranium Reconnaissance Program (URP), the program was renamed the Regional Geochemical Survey (RGS) in 1978. In 1987, the British Columbia Geological Survey began to administer the surveys independently, as part of Canada's National Geochemical Reconnaissance (NGR) program. Starting in 2006, samples from new surveys and archived samples were analyzed by Geoscience BC, and the results incorporated into the RGS database.
The regional geochemical survey was compiled from 111 original sources with 64,828 samples and about 5 million determinations analyzed using 18 methods in 18 laboratories (GeoFile 2017-11, T. Han and A.S. Rukhlov).
All 876 hardcopy maps showing sample locations for the Regional Geochemical Survey are digitally archived in Property File. Search 'RGS Maps' in the Collection field.