Idaho Code § 25-2112: Ranging stock in towns unlawful.

It shall be unlawful for any person or persons owning livestock, or the agent or employee of such person or persons, to allow any cattle, horses, sheep or hogs to range or graze within the platted limits of any incorporated town or village of more than five hundred (500) inhabitants, between the first day of September and the first day of April, without a herder.