In the name of Almighty God

The United States of America and the United Mexican States animated by a sincere desire to put an end to the calamities of the war which unhappily exists between the two Republics and to establish Upon a solid basis relations of peace and friendship, which shall confer reciprocal benefits upon the citizens of both, and assure the concord, harmony, and mutual confidence wherein the two people should live, as good neighbors have for that purpose appointed their respective plenipotentiaries, that is to say….

ARTICLE I

There shall be firm and universal peace between the United States of America and the Mexican Republic, and between their respective countries, territories, cities, towns, and people, without exception of places or persons.

ARTICLE II

Immediately upon the signature of this treaty, a convention shall be entered into between a commissioner or commissioners appointed by the General-in-chief of the forces of the United States, and such as may be appointed by the Mexican Government, to the end that a provisional suspension of hostilities shall take place, and that, in the places occupied by the said forces, constitutional order may be reestablished, as regards the political, administrative, and judicial branches, so far as this shall be permitted by the circumstances of military occupation.

ARTICLE III

Immediately upon the ratification of the present treaty by the Government of the United States, orders shall be transmitted to the commanders of their land and naval forces, requiring the latter (provided this treaty shall then have been ratified by the Government of the Mexican Republic, and the ratifications exchanged) immediately to desist from blockading any Mexican ports and requiring the former (under the same condition) to commence, at the earliest moment practicable, withdrawing all troops of the United States then in the interior of the Mexican Republic, to points that shall be selected by common agreement, at a distance from the seaports not exceeding thirty leagues; and such evacuation of the interior of the Republic shall be completed with the least possible delay….
The evacuation of the capital of the Mexican Republic by the troops of the United States, in virtue of the above stipulation, shall be completed in one month after the orders there stipulated for shall have been received by the commander of said troops, or sooner if possible.

ARTICLE V

The boundary line between the two Republics shall commence in the Gulf of Mexico, three leagues from land, opposite the mouth of the Rio Grande, otherwise called Rio Bravo del Norte, or Opposite the mouth of its deepest branch, if it should have more than one branch emptying directly into the sea; from thence up the middle of that river, following the deepest channel, where it has more than one, to the point where it strikes the southern boundary of New Mexico; thence, westwardly, along the whole southern boundary of New Mexico (which runs north of the town called Paso) to its western termination; thence, northward, along the western line of New Mexico, until it intersects the first branch of the river Gila; (or if it should not intersect any branch of that river, then to the point on the said line nearest to such branch, and thence in a direct line to the same); thence down the middle of the said branch and of the said river, until it empties into the Rio Colorado; thence across the Rio Colorado, following the division line between Upper and Lower California, to the Pacific Ocean.…

ARTICLE VI

The vessels and citizens of the United States shall, in all time, have a free and uninterrupted passage by the Gulf of California, and by the river Colorado below its confluence with the Gila, to and from their possessions situated north of the boundary line defined in the preceding article; it being understood that this passage is to be by navigating the Gulf of California and the river Colorado, and not by land, without the express consent of the Mexican Government.

If, by the examinations which may be made, it should be ascertained to be practicable and advantageous to construct a road, canal, or railway, which should in whole or in part run upon the river Gila, or upon its right or its left bank, within the space of one marine league from either margin of the river, the Governments of both republics will form an agreement regarding its construction, in order that it may serve equally for the use and advantage of both countries.

ARTICLE VIII

Mexicans now established in territories previously belonging to Mexico, and which remain for the future within the limits of the United States, as defined by the present treaty, shall be free to continue where they now reside, or to remove at any time to the Mexican Republic, retaining the property which they possess in the said territories, or disposing thereof, and removing the proceeds wherever they please, without their being subjected, on this account, to any contribution, tax, or charge whatever.

Those who shall prefer to remain in the said territories may either retain the title and rights of Mexican citizens, or acquire those of citizens of the United States. But they shall be under the obligation to make their election within one year from the date of the exchange of ratifications of this treaty; and those who shall remain in the said territories after the expiration of that year, without having declared their intention to retain the character of Mexicans, shall be considered to have elected to become citizens of the United States.

In the said territories, property of every kind, now belonging to Mexicans not established there, shall be inviolably respected. The present owners, the heirs of these, and all Mexicans who may hereafter acquire said property by contract, shall enjoy with respect to it guarantees equally ample as if the same belonged to citizens of the United States.

ARTICLE IX

The Mexicans who, in the territories aforesaid, shall not preserve the character of citizens of the Mexican Republic, conformably with what is stipulated in the preceding article, shall be incorporated into the Union of the United States, and be admitted at the proper time (to be judged of by the Congress of the United States) to the enjoyment of all the rights of citizens of the United States, according to the principles of the Constitution; and in the mean time, shall be maintained and protected in the free enjoyment of their liberty and property, and secured in the free exercise of their religion without; restriction.

Article XI

Considering that a great part of the territories, which, by the present treaty, are to be comprehended for the future within the limits of the United States, is now occupied by savage tribes, who will hereafter be under the exclusive control of the Government of the United States, and whose incursions within the territory of Mexico would be prejudicial in the extreme, it is solemnly agreed that all such incursions shall be forcibly restrained by the Government of the United States whensoever this may be necessary; and that when they cannot be prevented, they shall be punished by the said Government, and satisfaction for the same shall be exacted all in the same way, and with equal diligence and energy, as if the same incursions were meditated or committed within its own territory, against its own citizens.

It shall not be lawful, under any pretext whatever, for any inhabitant of the United States to purchase or acquire any Mexican, or any foreigner residing in Mexico, who may have been captured by Indians inhabiting the territory of either of the two republics; nor to purchase or acquire horses, mules, cattle, or property of any kind, stolen within Mexican territory by such Indians.

And in the event of any person or persons, captured within Mexican territory by Indians, being carried into the territory of the United States, the Government of the latter engages and binds itself, in the most solemn manner, so soon as it shall know of such captives being within its territory, and shall be able so to do, through the faithful exercise of its influence and power, to rescue them and return them to their country. or deliver them to the agent or representative of the Mexican Government. The Mexican authorities will, as far as practicable, give to the Government of the United States notice of such captures; and its agents shall pay the expenses incurred in the maintenance and transmission of the rescued captives; who, in the mean time, shall be treated with the utmost hospitality by the American authorities at the place where they may be. But if the Government of the United States, before receiving such notice from Mexico, should obtain intelligence, through any other channel, of the existence of Mexican captives within its territory, it will proceed forthwith to effect their release and delivery to the Mexican agent, as above stipulated.

For the purpose of giving to these stipulations the fullest possible efficacy, thereby affording the security and redress demanded by their true spirit and intent, the Government of the United States will now and hereafter pass, without unnecessary delay, and always vigilantly enforce, such laws as the nature of the subject may require. And, finally, the sacredness of this obligation shall never be lost sight of by the said Government, when providing for the removal of the Indians from any portion of the said territories, or for its being settled by citizens of the United States; but, on the contrary, special care shall then be taken not to place its Indian occupants under the necessity of seeking new homes, by committing those invasions which the United States have solemnly obliged themselves to restrain.

ARTICLE XII

In consideration of the extension acquired by the boundaries of the United States, as defined in the fifth article of the present treaty, the Government of the United States engages to pay to that of the Mexican Republic the sum of fifteen millions of dollars.

Immediately after the treaty shall have been duly ratified by the Government of the Mexican Republic, the sum of three millions of dollars shall be paid to the said Government by that of the United States, at the city of Mexico, in the gold or silver coin of Mexico The remaining twelve millions of dollars shall be paid at the same place, and in the same coin, in annual installments of three millions of dollars each, together with interest on the same at the rate of six per centum per annum. This interest shall begin to run upon the whole sum of twelve millions from the day of the ratification of the present treaty by--the Mexican Government, and the first of the installments shall be paid-at the expiration of one year from the same day. Together with each annual installment, as it falls due, the whole interest accruing on such installment from the beginning shall also be paid.

ARTICLE XIII

The United States engage, moreover, to assume and pay to the claimants all the amounts now due them, and those hereafter to become due, by reason of the claims already liquidated and decided against the Mexican Republic, under the conventions between the two republics severally concluded on the eleventh day of April, eighteen hundred and thirty-nine, and on the thirtieth day of January, eighteen hundred and forty-three; so that the Mexican Republic shall be absolutely exempt, for the future, from all expense whatever on account of the said claims.

ARTICLE XIV

The United States do furthermore discharge the Mexican Republic from all claims of citizens of the United States, not heretofore decided against the Mexican Government, which may have arisen previously to the date of the signature of this treaty; which discharge shall be final and perpetual, whether the said claims be rejected or be allowed by the board of commissioners provided for in the following article, and whatever shall be the total amount of those allowed.

ARTICLE XV

The United States, exonerating Mexico from all demands on account of the claims of their citizens mentioned in the preceding article, and considering them entirely and forever canceled, whatever their amount may be, undertake to make satisfaction for the same, to an amount not exceeding three and one-quarter millions of dollars. To ascertain the validity and amount of those claims, a board of commissioners shall be established by the Government of the United States, whose awards shall be final and conclusive; provided that, in deciding upon the validity of each claim, the boa shall be guided and governed by the principles and rules of decision prescribed by the first and fifth articles of the unratified convention, concluded at the city of Mexico on the twentieth day of November, one thousand eight hundred and forty-three; and in no case shall an award be made in favour of any claim not embraced by these principles and rules.

If, in the opinion of the said board of commissioners or of the claimants, any books, records, or documents, in the possession or power of the Government of the Mexican Republic, shall be deemed necessary to the just decision of any claim, the commissioners, or the claimants through them, shall, within such period as Congress may designate, make an application in writing for the same, addressed to the Mexican Minister of Foreign Affairs, to be transmitted by the Secretary of State of the United States; and the Mexican Government engages, at the earliest possible moment after the receipt of such demand, to cause any of the books, records, or documents so specified, which shall be in their possession or power (or authenticated copies or extracts of the same), to be transmitted to the said Secretary of State, who shall immediately deliver them over to the said board of commissioners; provided that no such application shall be made by or at the instance of any claimant, until the facts which it is expected to prove by such books, records, or documents, shall have been stated under oath or affirmation.

ARTICLE XVI

Each of the contracting parties reserves to itself the entire right to fortify whatever point within its territory it may judge proper so to fortify for its security.

ARTICLE XXIII

This treaty shall be ratified by the President of the United States of America, by and with the advice and consent of the Senate thereof; and by the President of the Mexican Republic, with the previous approbation of its general Congress; and the ratifications shall be exchanged in the City of Washington, or at the seat of Government of Mexico, in four months from the date of the signature hereof, or sooner if practicable. In faith whereof we, the respective Plenipotentiaries, have signed this treaty of peace, friendship, limits, and settlement, and have hereunto affixed our seals respectively. Done in quintuplicate, at the city of Guadalupe Hidalgo, on the second day of February, in the year of our Lord one thousand eight hundred and forty-eight.

Source: Treaties and Conventions between the United States of America and Other Powers Since July 4, 1776 (Washington, DC : Government Printing Office 1871).