This $20 coin is 99.99% pure silver, with a diameter of 38 millimeters and a metal weight of 31.39 grams. The coloured reverse design by Canadian artist Robert Ross features an original painting of a set of rapids on the Madawaska River in the southern portion of Algonquin Provincial Park, in Ontario. The obverse features the effigy of Her Majesty Queen Elizabeth lI by Susanna Blunt.