after stating the case as above, delivered the opinion of the court.
Concerning the proper location of an interstate boundary line with reference to the shores and channel of a navigable river separating one State of the Union from another, much has been written. The subject wаs brought under the consideration of this court in
Iowa
v.
Illinois,
*171
The rule thus adopted, known as the rule of the
“thal-weg,”
has been treated as set at rest by that decision.
Louisiana
v.
Mississippi,
It is said that Arkansas has interpreted the line to be at a point equidistant from the well-defined and permanent banks of the river, that Tennessee likewise has recognized this boundary, and that by long acquiescénce on the part of both States in 'this construction, and the exercise of jurisdiction by both in accordance therewith, the question should be treated as settled. The reference is to certain judicial decisions, and two acts of legislation. In Cessill v. State (1883), 40 Arkansas, 501, which was a prosecution for unlicensed sale of liquors upon a boat anchored off the Arkansas shore, it was held that the boundary linе, as established by the original treaties and since observed in federal legislation, state constitutions, and judicial decisions was the “line along the river bed equidistant from- the permanent and defined banks of the ascertained channel on either side.” This was followed in subsequent decisions by the same court. Wolfe v. State (1912), 104 Arkansas, 140, 143; Kinnanne v. State (1913), 106 Arkansas, 286, 290. Thе first pertinent decision by the Supreme Court of Tennessee is State v. Muncie Pulp Co. (1907), 119 Tennessee, 47, in which a similar conclusion'was reached, partly upon the ground that it had been adopted by the courts of Arkansas. The legislative action referred to consists of two acts of the General Assembly of the State of Tennesseе (Acts 1903, p. 1215, c. 420; Acts 1907, p. 1723, c. 516), each of which authorized the *172 appointment of a commission to confer and act with a like commission representing the State of Arkansas to locate the line between the States in the old and abandoned channel at the place that we now have under cоnsideration; and the Act of 1907 further provided that if Arkansas should fail to appoint a commission, the Attorney General of Tennessee should be authorized to institute a suit against that State in this court to establish and locate the boundary line. These acts, far from treating the boundary as a line settled and acquiesced in, treat it as a matter requiring to be definitely settled, with the cooperation of representatives of the sister State if practicable, otherwise by appropriate litigation.
The Arkansas decisions had for their object the establishment of a proper rule for the administration of the criminаl laws of the State, and were entirely independent of any action taken or proposed by the authorities of the State of Tennessee. They had no particular reference to that part of the river bed that was abandoned as the result of the avulsion of 1876; on the contrary, they dealt with pаrts of the river where the water still flowed in its ancient channel. The decision of the Supreme Court of Tennessee in
State
v.
Muncie Pulp Co.,
119 Tennessee, 47, sustained the claim of the State to a part of the abandoned river bed which, by the rule of the
thalweg,
would be without that State. The combined effect of these decisions and of the lеgislation referred to, all of which were subsequent to the year 1876, falls far short of that long acquiescence in the practical location of a common boundary, and possession in accordance therewith, which in some, of the eases has been treated as an aid in setting the question at rest.
Rhode Island
v.
Massachusetts,
*173 Therefore we find it unnecessary to decide whether the supposed agreement between the States respecting the boundary would be valid without the consent of Congress, in view of the third clause of § 10 of Art. 1 of the Constitution of the United States.
The next and perhaps the most important question is as to the effеct of the sudden and violent change in the channel of the river that occurred in the year 1876, and which both parties properly treat as a true and typical avulsion. It is settled beyond the possibility of dispute that where running streams are the boundaries between States, the same rule applies as between private proprietors, namely, that when the bed and channel are changed by the natural and gradual processes known as erosion and accretion, the boundary follows the varying course of the stream; while if the stream from any cause, natural or artificial, suddenly leaves its old bed and forms a nеw one, by the process known as an avulsion, the resulting change of channel works no change of boundary, which remains in the middle of the old channel, although no water may be flowing in it, and irrespective of subsequent changes in the new channel.
New Orleans
v.
United States,
There is controversy with respect to the application of the foregoing rule to the particular circumstances of this case. It is insisted in behalf of the State of Tennessee that since the rule of the
thalweg
derives its origin from the equal rights of the respective States in the navigation of the river, the reason for the rule and therefore the rule itself ceases when navigation has been rendered impossible by the abandonment of a portion of the river bed as the result of an avulsion. In support of this contention we are referred to some expressions of Vattel, Almeda, Moore, and other writers; but we deem them inconclu
*174
sive, and are of the opinion, on the contrary, that the contention runs counter to the settled rule and is inconsistent with the declarations of this court, in
Nebraska
v.
Iowa,
It is contended, further, that since the avulsion of 1876 caused the old river bed to dry up, what is called "the doctrine of the submergence and reappearance of land” must be applied, so as to establish the ancient boundary as it existed at the time of the earliest record, in this case the year 1823, with the effect of eliminating any shifting of the river bed that resulted from the erosions and accretions of the half century preceding the avulsion.
This contention is rested chiefly upon a quotation from Sir Matthew Hale,
De Jure Maris,
c. 4: "If a subject hath land adjoining the sea, and the violence of the sea swallow it up, but so that yet there be reasonable marks to continue the notice of it; or though the marks be defaced; yet if by situation and extent of quantity, and bounding upon the firm land, the same can bе known, though the sea leave this land again, or it be by art or industry regained, the subject doth not lose his propriety; and accordingly it was held by Cooke and Foster, M. 7 Jac. C. B., though the inundation continue forty years.” (1 Hargraves’ Law Tracts, 15; Note to
Ex parte Jennings,
How the land that emerges on either side of an interstate boundary stream shall be disposed of as between public and private ownership is a matter to be determined
*176
according to the law of each State, under the familar doctrine that it is for the States to establish for themselves such rules of prоperty as they deem expedient with respect to the navigable waters within their borders and the riparian lands adjacent to them.
Pollard’s Lessee
v.
Hagan,
3 How, 212, 230;
Barney
v.
Keokuk,
It is hardly necessary to say that State v. Muncie Pulp Co., supra, and Stockley v. Cissna, 119 Fed. Rep. 812, relied upon in defendant’s answer as judicial determinations of the boundary line, can have no such effect against the State of Arkansas, which was a stranger to the record in both cases.
Upon the whole case we conclude that the questions submitted for our determination are to be answered as .follows:
*177 (1) The true boundary line between the States, aside from the question of the avulsion of 1876, is the middlе of the main channel of navigation as it existed at the Treaty of Peace concluded between the United States and Great Britain in 1783, subject to such changes as have occurred since that time through natural and gradual processes.
(2) By the avulsion of 1876 the boundary line between the States was unaffeсted, and remained in. the middle of the former main channel of navigation, as above defined.
(3) The boundary line should now be located according to the middle of that channel as it was at the time the current ceased to flow therein as a result of the avulsion of 1876.
(4) A commission consisting, of three compеtent persons, to be named by the court upon the suggestion of counsel, will be appointed to run, locate, and designate the boundary line between the States at the place in question in accordance with the above principles.
(5) The nature and extent of the erosions and accretions that occurred in the old channel prior to its abandonment by the current as a result of the avulsion of 1876, and the question whether it is practicable now to locate accurately the line .of the river as it then ran, will be referred to said commission, subject to a review of its decision by this court if need.be.
The. parties may submit the form of an interlocutory decree to carry into effect the above .conclusions.
