Exploring near a known deposit or an existing mine, where infrastructure already exists.
Exploration conducted near existing mines or known mineral deposits to find additional resources or extensions. Brownfield exploration has lower geological risk than greenfield work because the geological setting is already understood.
Ounces found beside a mill are worth more than ounces found in isolation, because they can be processed without new capital. This is why historic mining camps stay actively explored for decades after their original discovery.
108 terms have their own page: the definition, why it matters to an investor, where it shows up in practice, and the mistake people make with it.