Cariboo an oval, water-worn cobblestone, resembling a cow's tongue in shape, often found in numbers and forming a kind of pavement in a stream bed, believed by placer miners to indicate the probable presence of gold.
- 1958  And many an old timer waits eagerly and tries desperately to be the one to startle the villages and towns with that ancient cry. "Cow's tongues and the bed-rock pitchin', get away girls, get away."
- 1963  Cow's tongues are the round, smooth boulders found along rivers and streams.