Stephen Johnson Field,
Utah and North Railway Company v…
“ The authority of the territory may rightfully extend to all matters not interfering with that protection. It has, therefore, been held that process of its courts may run into an Indian reservation of this kind, where the subject-matter or controversy is otherwise within their cognizance. If the plaintiff lawfully constructed and now operates a railroad through the reservation, it is not perceived that any just rights of the Indians, under the treaty can be impaired by taxing the road and property used in operating it. ”
