Executive Mansion, January 6, 1880.
It is hereby ordered that the following-described country lying within the boundaries of the Territories of New Mexico and Arizona, viz: Commencing in the middle of the channel of the San Juan River, where the east line of the Navajo Reservation in the Territory of New Mexico, as established by the treaty of June 1,1868 (15 Stat.. 667), crosses said river; thence up and along the middle channel of said river to a point 15 miles due east of the eastern boundary line of said reservation; thence due south to a point due east of the present southeast corner of said reservation; thence due south 6 miles; thence due west to the one hundred and tenth degree of west longitude; thence north along said degree to the southwest corner of said reservation in the Territory of Arizona, as defined by Executive order dated October 29, 1878, be, and the same is hereby, withdrawn from sale and settlement and set apart as an addition to the present Navajo Reservation in said Territories.
R.B. HAYES.
Source: Kappler, Indian Affairs, Laws And Treaties, US GPO, 1904, p. 876
Rutherford B. Hayes, Executive Order—Withdrawing Navajo Territories Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/371830