EXECUTIVE MANSION, October 20, 1875.
It is hereby ordered that the tract of country, 20 miles in width, in the Territory of Montana, lying within the following-described boundaries, viz: Commencing at a point in the mid-channel of the Yellowstone River, where the one hundred and seventh degree of west longitude crosses the said river; thence up said mid-channel of the Yellowstone to the mouth of Big Timber Creek; thence up said creek 20 miles, if the said creek can be followed that distance; if not, then in the same direction continued from the source thereof to a point 20 miles from the mouth of said creek; thence eastwardly along a line parallel to the Yellowstone—no point of which shall be less than 20 miles from the river—to the one hundred and seventh degree west longitude; thence south to the place of beginning, be, and the same hereby is, withdrawn from sale and set apart for the use of the Crow tribe of Indians as an addition to their present reservation in said Territory, set apart in the second article of treaty of May 7, 1868 (Stat at L. vol. 15, p. 650 [15 Stat 649]); provided that the same shall not interfere with the rights of any bona fide settlers who may have located on the tract of country herein described.
U.S. Grant
SOURCE: Kappler, Indian Affairs, Laws and Treaties, US GPO, 1904, p 857
Ulysses S. Grant, Executive Order—Expanding Crow Indian Reservation Boundaries Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/371222