Omaechevarria v. Idaho

For more than forty years the raising of cattle and sheep have been important industries in Idaho. The stock feeds in part by grazing on the public domain of the United States. This is done with the Government’s acquiescence, without the payment of compensation, and without federal regulation. Buford v. Houtz, 133 U. S. 320, 326. Experience has demonstrated, says the state court, that in arid and semi-arid regions cattle will not graze, nor can they thrive, on ranges where sheep are allowed to graze extensively; that the encroachment of sheep upon ranges previously occupied by cattle results…