Idaho Code § 42-114: Stock watering permit.

Any permit issued for the watering of domestic livestock shall be issued to the person or association of persons making application therefor and the watering of domestic livestock by the person or association of persons to whom the permit was issued shall be deemed a beneficial use of the water.

As used in this section, the "watering of domestic livestock" means the drinking of water by domestic livestock from a natural stream, ground water source or other source.