File No. 711.1215/429

The Acting Secretary of State to the American Ambassador.

No. 884.

Sir: I inclose herewith for your information a copy of tentative bases for a convention between the United States and Mexico for the settlement of the Chamizal case and other related questions, the original of which was, on the 28th ultimo, handed on the part of the Department to Señor Algara, the Second Secretary of the Mexican Embassy.

I am [etc.]

Huntington Wilson.
[Inclosure.]

tentative bases for a convention for the settlement of the chamizal case and other related questions along lines of practical convenience proposed on the part of the united states for consideration without prejudice to the contentions of either government in regard to the validity of the chamizal award.

1.
A Preamble reciting that certain differences have arisen and still subsist between the United States and Mexico in regard to the proper interpretation to be given certain provisions of the Boundary Treaties in force between the two countries and with respect to the location of the international boundary line near El Paso, Texas, and Juárez, Chihuahua; and reciting further that differences have arisen and still subsist between the two Governments as to the validity and binding effect of the decision of the International Boundary Commission in the Chamizal Case, the United States maintaining that said decision is absolutely invalid for all purposes and of no binding effect whatever for the reasons set forth in the dissenting opinion of the American Commissioner1 and in the protest of the American Agent, and the Government of Mexico on the other hand maintaining the validity of said decision2; therefore, in order to obviate these differences and to avoid like differences in future, the two Governments, as a matter of practical convenience, have agreed to negotiate a convention on the following tentative bases:
2.
A declaratory interpretation of the Treaty of Guadalupe Hidalgo of February 2, 1848; the Treaty of Boundary of December 2, 1853, and the Boundary Convention of November 12, 1884, as establishing or recognizing the “centre of the normal channel of the Rio Grande” from its mouth “to the point where the parallel 31° 47’ north latitude crosses the same” as a fluvial or arcifinious international boundary line between the United States and Mexico, subject at all times to the principles laid down in paragraphs three and four.
3.
A declaratory interpretation of Articles I and II of the Convention of November 12, 1884, and Article IV of the Convention of March 1, 1889, as referring only to two classes of changes: first, changes by “erosion,” i. e., the erosion of one bank and the deposit of alluvium upon the other; and second, by “avulsion,” i.e., “the cutting of a new bed, or, when there is more than one channel, by the deepening of another channel” than that previously recognized as the boundary.
4.
A further declaratory interpretation that these two classes of cases embrace all the changes and all the classes of changes, other than artificial changes, which have occurred in the channel of said river since the signature of the Treaty of 1848, or may occur hereafter, except the special class of changes provided for in the Convention of March 20, 1905, for the elimination of the bancos in the Rio Grande.
5.
The above declaratory interpretations apply in all respects to the Rio Colorado where it forms the international boundary line.
6.
In order to terminate forever certain differences which have arisen and still subsist between the two Governments with respect to the location of the international boundary line near El Paso, Texas, and Juárez, Chihuahua, it is hereby specifically recognized that from the point where parallel 31° 47’ north latitude intersects the channel of the Rio Grande to a point immediately below the more easterly of the two tracts of land segregated from Mexico and the United States, respectively, by the artificial cut-off of 1901, the boundary line follows the centre of the normal channel of the Rio Grande, which boundary line at present is substantially as shown by the red line on a map to be prepared by the two sections of the International Boundary Commission and signed by the Plenipotentiaries.
7.
In order to preclude the possibility of any question with respect to private titles, the Government of Mexico recognizes the validity of the private titles derived from grants of the State of Texas to the lands in the small portion of land southerly from the present channel of the Rio Grande and lying between it and the abandoned channel of 1901, the same being substantially as shown on the map referred to in paragraph six. The Government of the United States recognizes the validity of titles derived from Mexican grants in the so-called Cordova Tract, being the tract bounded westerly, northerly and easterly by the abandoned channel of the Rio Grande of 1901 and southerly by the present channel of the Rio Grande, and being substantially as shown on said map.
8.
It is furthermore specifically agreed that the international boundary line at the artificial bar known as El Horcón shall follow the centre of the normal channel of the Rio Grande, which channel at present is substantially as shown on a map signed by General Anson Mills, United States Commissioner, and Señor Don F. B. Puga, Mexican Commissioner, accompanying the Joint Journal of the International Boundary Commission of October 24, 1906, now on file in the archives of the two Governments.
9.
In order to preclude the possibility of any question with respect to private titles the Government of Mexico recognizes the validity of the private titles derived from grants of the State of Texas to the lands within the so-called bar of El Horcón as shown on the map referred to in paragraph eight, supra.
10.
The three parcels of land segregated by artificial cut-offs and mentioned in paragraphs 6 and 8 shall be marked by the International Boundary Commission in accordance with the rules adopted by the Commission for the marking of bancos under the Convention of March 20, 1905.
11.
If, in the course of the negotiations, it should appear that the readjustment of the boundary line herein provided renders it equitable that any difference in the area or value of lands falling thereby to the respective parties, should be equalized through the payment of a money consideration, suitable provision shall be made therefor in this convention.