South dakota constitution
Article XXVI: schedule and ordinance
Section 6

And upon the canvass and return of the vote, made as hereinafter provided for, the name of the city, town or place which shall have received the largest number of votes for said temporary seat of government, shall be declared by the Governor, chief justice and secretary of the territory of Dakota, or by any two of them, at the same time that they shall canvass the vote for or against the Constitution, together with the whole number of votes cast for each city, town or place, and the officers above named, shall immediately after the result of said election shall have been ascertained, issue a proclamation directing the Legislature elected at said election to assemble at said city, town or place so selected, on the day fixed by this schedule and ordinance