Okla. Stat. tit. 73, § 73-1: Seat of government and capitol established

The seat of government and capitol of the State of Oklahoma

shall be and is hereby established at Oklahoma City, in the county

of Oklahoma, in the said state; and the permanent capitol of the

state shall be erected on the following described lands: Fifteen

(15) acres of land surrounding a point on the half-section line

running north and south between the northeast fourth and the

northwest fourth of section twenty-seven (27), township twelve (12)

north, range three (3) west of the Indian Meridian, otherwise known

as the center of Lincoln Boulevard at its intersection with the

center of Twenty-second street, extending east from the right-of-way

of the Atchison, Topeka and Santa Fe Railway Company; and the

Executive Mansion shall be located in the vicinity of said capitol

grounds on a site consisting of one-half (1/2) block, the same to be

selected by the Capitol Commission.