The Mineral Occurrence Map of Guyana at the scale 1: 1,000,000 includes a compilation by Geologists and Mines Officers of GGMC of mineral deposits and occurrences of: gold, diamonds, manganese, columbite-tantalite, uranium, Rare Earth Elements, and semi-precious stones.

Old workings of previous mining activities and occurrences, deposits are shown with various symbols and colors.

  1. Workings:
    1. Gold (red dot, yellow area)
    2. Diamond (purple diamond and purple area)
    3. Columbite-tantalite (blue circle with a dot, blue area)
    4. Manganese (black square, grey area)
  2. Mines: 2 picks (black)