18 U.S.C. § 1151 : US Code - Section 1151: Indian country defined

Search 18 U.S.C. § 1151 : US Code - Section 1151: Indian country defined

Except as otherwise provided in sections 1154 and 1156 of this
title, the term "Indian country", as used in this chapter, means
(a) all land within the limits of any Indian reservation under the
jurisdiction of the United States Government, notwithstanding the
issuance of any patent, and, including rights-of-way running
through the reservation, (b) all dependent Indian communities
within the borders of the United States whether within the original
or subsequently acquired territory thereof, and whether within or
without the limits of a state, and (c) all Indian allotments, the
Indian titles to which have not been extinguished, including rights-
of-way running through the same.