ARTICLE IV
To fix this line with more precision, and to place the landmarks which shall designate exactly the limits of both nations, each of the contracting parties shall appoint a Commissioner and a surveyor, who shall meet before the termination of one year from the date of the ratification of this treaty at Nachitoches, on the Red River, and proceed to run and mark the said line, from the mouth of the Sabine to the Red River, and from the Red River to the river Arkansas, and to ascertain the latitude of the source of the said river Arkansas, in conformity to what is above agreed upon and stipulated, and the line of latitude 42, to the South Sea: they shall make out plans, and keep journals of their proceedings, and the result agreed upon by them shall be considered as part of this treaty, and shall have the same force as if it were inserted therein. The two Governments will amicably agree respecting the necessary articles to be furnished to those persons, and also as to their respective escorts, should such be deemed necessary.