-This appeal is from an order denying a motion for a new trial, and from a judgment, which perpetually restrains the commission and compels the discontinuance of certain acts as wrongful and injurious to public rights.

*144 The record of the case shows that “ the Gold Run Ditch and Mining Company has been, since August, 1870, a corporation existing under the laws of the State of California, for the purpose of mining by the hydraulic process, and selling water to miners and others ; and that it is now, and its predecessors have been for several years last past, in possession of five hundred acres of mineral land, situated adjacent to the North Fork of the American River, and of certain mines on said land, which it works by the hydraulic process. The natural surface of this land lies about one thousand feet above the river ; and all the material of the mines upon the land—consisting of about twenty million cubic yards of material, composed mostly of sand, gravel, small stones, cobbles and bowlders, mixed with small particles of gold, is capable of being worked off into the river. For the purpose of mining this tract of land by the hydraulic process, the company has conducted to its mines, by means of ditches and iron pipes, a large quantity of water, which it uses, and will continue to use, under a vertical pressure of several hundred feet, discharging water through ‘ little giants ’ and ‘ monitors/ and dumping all the tailings from its mines into the river. In that manner it has been carrying on its mining operations upon said land for about eight years last past; and up to the time of commencing this action, and during about five months of each year of said period, has been daily discharging into the said river between four and five thousand cubic yards of solid material from its said mine, to wit, of bowlders, cobbles, gravel and sand, making a yearly discharge of at least six hundred thousand cubic yards ; and will continue to discharge that quantity annually if the working of said mine be permitted to continue ; and at such rate it will require some thirty years to mine out and exhaust said mineral land.”

Of the material thus discharged into the river a large portion has been washed, from the place of discharge or dump, down the river, and, “ commingled with tailings from other hydraulic mines; and still other material, which is the product of natural erosion, has been deposited in the beds and channels of the American and Sacramento rivers and their confluents, but mostly in the American, and upon lands adjacent to both rivers.” The deposits of this material upon the beds and along the chan *145 neis of the rivers, and through the Suisun bay, and into the San Pablo and San Francisco bays, have already filled and raised the beds of both rivers. The bed of the American has been raised from ten to twelve feet, and in some places more, and the bed of the Sacramento, to a great extent below the mouth of the American, from six to twelve feet. In consequence, the beds of the two rivers have shallowed, and their channels widened, so that the depths of the rivers have greatly lessened, and their liability to overflow has been materially increased, causing the frequent floods to extend their area, and to be more destructive than they otherwise would have been, and covering thousands of acres of good land in the Sacramento valley with mining debris. And as the rivers are at all times carrying in suspension the lighter earthy matter from the mines, and washing down the heavier debris, they are likely to fill more rapidly in the future, in proportion to the quantity of hydraulic tailings, than in tile past, and to cause much further and greater injury in the future to large tracts of land—probably rendering them, within a few years, unfit for cultivation and inhabitancy. Besides, the discharge from the mines so fouls the water of the American river at all points below, as to make it unfit for any domestic use by the inhabitants. And from the same cause “ the navigation of the Sacramento river has been so greatly impaired, that the river, which, until the year 1862, was navigated as far as the city of Sacramento without difficulty by steamers of deep draught, to wit, by boats drawing nine or ten feet of water, has been, since the year 1862, unnavigable as far as the city of Sacramento by boats of deep draught, except during high water, instead of at all times, as formerly. And there is imminent danger, if the acts of the defendant and others engaged in hydraulic mining are allowed to continue, that the beds and channels of the lower portion of the American river, and of the Sacramento river below the mouth of the American, will be so filled and choked up by tailings and other deposits, that said rivers will be turned from their channels, cutting: new waterways, injuring or destroying immense tracts of land, which probably will result in greatly impairing the navigability of the Sacramento river.”

Vast as may be the interests bound up in the litigation, yet *146 the questions for the consideration of this court, arising out of the facts as found by the court below, lie within a comparatively narrow compass. All of them flow into one as the main question at issue, and that is, whether the defendant, as owner of its hydraulic mines, situate on the banks of the American river—an unnavigable stream which empties its waters into the Sacramento river, the principal navigable river within the State —has the right to dump its hydraulic debris into the river, to the endangerment of habitation and cultivation of large tracts of country, upon which are cities, towns, and villages, and to the impairment of the navigation of the Sacramento river; and if there exists no such right in the defendant, do the acts committed by it, and which it threatens to continue to commit, involving such consequences, constitute a public nuisance which may be enjoined in an action in the name of the people of the State '(

Courts take judicial notice of the navigability of the Sacramento river. In addition to which, the court below has found that the river has been declared by law navigable to the mouth of Middle creek, which is above the confluence of the American and Sacramento rivers ; “ and has been continually navigated by steamer's, barges, schooners, and smaller craft; and, up to 1862, was navigated as far as the city of Sacramento, without difficulty, by steamers of deep draught, to wit, by boats drawing nine or ten feet of water.” Navigability in law and in fact has, therefore, been established. As a navigable river, the Sacramento is a great public highway, in which the people of the State have paramount and controlling rights. These rights consist chiefly of a right of property in the soil, and a right to the use of the water flowing over it, for the purposes of transportation and commercial intercourse. The soil of a navigable river is the alveus or bed of the river ; the river itself is the water flowing in its channel. An unauthorized invasion of the rights of the public to navigate the water flowing over the soil is a public nuisance ; and an unauthorized encroachment upon the soil itself is known in law as a purpresture. Purpresture is also a particular kind of nuisance. The word is derived from the French wordpourpris, which signifies an inclosure : “That is,” says Coke, “ when one encroacheth and makes that service *147 able to himself which belongs to many. And because it is properly, when there is an inclosure made of any part of the king’s demesne, or of a highway, or a common street, or public water, or such like things.” (2 Coke’s Insts. 271.)

Great water highways belong to the same class of public rights, and are governed by the same general rules applicable to highways upon land. Any contracting or narrowing of a public highway on land is a nuisance (Russell on Crimes, 349); and all unauthorized intrusions upon a water highway, for purposes unconnected with the right of navigation or passage, are nuisances. (Commonwealth v. Caldwell, 1 Dall. 150 ; Commonwealth v. King, 13 Met. 115 ; sections 3479, 3480, C. C.) To make use of the banks of a river for dumping places, from which to cast into the river annually six hundred thousand cubic yards of mining debris, consisting of bowlders, sand, earth, and waste materials, to be carried by the velocity of the stream down its course and into and along a navigable river, is an encroachment upon the soil of the latter, and an unauthorized invasion of the rights of the public to its navigation; and when such acts not only impair the navigation of a river, but at the same time affect the rights of an entire community or neighborhood, or any considerable number of persons, to the free use and enjoyment of their property, they constitute, however long continued, a public nuisance.

In Veazie v. Dwinel, 50 Me. 479 , certain mill occupants on the Penobscot river were accustomed to throw slabs, edgings, and other waste materials from their mills into the river, to float or sink, and obstruct navigation. The Supreme Court compelled the discontinuance of the practice. “ Highways,” said the court, “ whether on land or water, are designed for the accommodation of the public for travel or transportation ; * * * they cannot be made the receptacles of waste materials, filth or trash, nor the depositories of even valuable property, so as to obstruct their use as public highways. * * * If, therefore, any person obstruct a stream, which is by law a public highway, by casting therein waste material, or filth, or trash, or by depositing material of any description, except as connected with the reasonable use of such stream as a highway, or by direct authority of law, he does it at his peril—it is a public nuisance.” And *148 in Garrish v. Brown, 51 Me. 262 , the court reiterates the same doctrine : “ A person who casts at random filth, or trash, or waste materials into a public river, to float or sink as it may, without guidance or direction, can in no sense be said to be in the use of such river for lawful purposes.”

But it is contended that as the nuisance complained of and found by the court was the result of the aggregate of mining debris dumped into the stream by the defendant and other mining companies, acting separately and independently of each other, the acts of the defendant cannot be joined with the acts of other mining companies, to create a cause of action against the defendant. The contention is made upon a finding by the court as follows:

And it is attempted to sustain the contention by the cases of Chipman v. Palmer, 77 N. Y. 51 ; Schuylkill Navigation Company v. Richards, 57 Pa. St. 142 ; Sellick v. Hall, 47 Conn. 260 , and Keyes v. Little York, 53 Cal. 724 .

The first three of those cases were actions on the case for damages ; the first, for polluting the water of a stream by the discharge of sewage therein ; the second, for the filling up of the basin of a dam and water-power with coal-dirt and waste material, cast into a stream by separate collieries, working their mines on the stream independently of each other ; and the third,, for the overflow of a brook, obstructed by the defendant and other persons who were not parties to the action. Each of those cases was decided upon the principle that where several persons, acting independently of each other, engage in the commission *149 of wrongful acts, the torts are distinct and not joint; and each is only severally liable for the injury caused by his own acts, and not for the torts of others with whom he was not acting in concert. There can be no doubt of the correctness of that principle, and of its applicability to an action at law for the recovery of damages for the violation of a private right. But in the case of Keyes v. Little York, the late Supreme Court of this State applied the principle to an action in equity, by which the plaintiff sought to enjoin a number of persons, who, without privity or concert of action, contributed to the washing down from their mining claims, mining debris into a stream which carried it down, and spread it over the plaintiff’s land, rendering it valueless. To the complaint in the action, the court sustained a demurrer, upon the ground of misjoinder, because all who contributed to the injury complained of could not be joined as defendants, without an averment that they acted in concert in the commission of the wrongful acts charged against them.

That case, however, was practically overruled by this court, in Hillman v. Newington, 57 Cal. 62 . That also was a case in which the plaintiff sued a number of persons to recover damages for the wrongful diversion of the water of a stream, and to perpetually enjoin them from diverting the same. The defendants answered, as in Keyes v. Little York , that they were improperly joined in the action, because they acted severally and not jointly. But this court said : “ Each of the defendants diverts some of the water, and the aggregate reduces the volume below the amount to which the plaintiff is entitled, although the amount diverted by any one would not. * * * All who act must therefore be held to act jointly,” and the damages and costs may be apportioned by the court, sitting as a court of equity. This case clearly recognized the equitable principle that, in an action to abate a public or private nuisance, all persons engaged in the commission of the wrongful acts which constitute the nuisance may be enjoined, jointly or severally. It is the nuisance itself, which, if destructive of public or private rights of property, may be enjoined.

The King v. Trafford, 1 Barn. & Adol. 874, was a criminal action for a public nuisance to a public canal navigation, established *150 by act of Parliament. The jury found that the acts creating the nuisance were done by the defendants separately; but it was held, nevertheless, that as the nuisance was the result of all those acts jointly, the defendants were rightly joined in one indictment, which stated the acts to be several.

Whenever an indictable nuisance exists, there is a coordinate remedy in equity to abate it by injunction. In an equitable action for that purpose, there is generally raised no question of damages. Until the adoption of the codes, such a question could not be raised in an action in equity for the abatement of a nuisance. The only question was, whether the nuisance complained of and sought to be redressed had been committed ; and it was no answer, in such an action, where there ¿was no question as to a separate or joint liability for damages in the case, to say that other persons were committing the same sort of nuisance. (Crossley & Sons v. Lightowler, L. R.., 3 Eq. Cas. 279; Chipman v. Palmer, 77 N. Y. 51 .) So in Woodyear v. Schaeffer, 57 Md. 9 , it is said: “ It is no answer to a complaint of nuisance, that a great many others are committing similar acts of nuisance. Each and every one is liable to a separate action, and to be restrained. * * * The extent to which the appellee has contributed to the nuisance may be slight, and scarcely appreciable. Standing alone, it might well be that it would only very slightly, if at all, prove a source of annoyance. And so it might be, as to each of the other numerous persons contributing to the nuisance. Each standing alone might amount to little or nothing. But it is when all are united together, and contribute to a common result, that they become important, as factors, in producing the mischief complained of. And it may only be after, from year to year, the number of contributors to the injury has greatly increased, that sufficient disturbance of rights has been caused to justify a complaint. * * * In that state of facts * * * each element of contributivo injury is a part of one common whole; and to stop the mischief in the whole, each part in detail must be arrested and removed.”

But it is also claimed that the defendant has acquired the right from custom, and by prescription and the statute of limitations, to use the American and Sacramento rivers as outlets for its mining debris ; and that in the exercise of this right it can *151 not be restrained in its business of hydraulic mining, notwithstanding the consequent injuries to those rivers.

Undoubtedly, the fact must be recognized, that in the mining regions of the State, the custom of making use of the waters of streams as outlets for mining debris has prevailed for many years ; and as a custom it may be conceded to have been founded in necessity ; for without it, hydraulic mining could not have been economically operated. In that custom the people of the State have silently acquiesced, and upon the strength of it mining operations, involving the investment and expenditure of large capital, have grown into a legitimate business, entitled equally with all other business pursuits in the State to the protection of the law. But a legitimate private business, founded upon a local custom, may grow into a force to threaten the safety of the people, and destruction to public and private rights; and when it develops into that condition, the custom upon which it is founded becomes unreasonable, because dangerous to public and private rights, and cannot be invoked to justify the continuance of the business in an unlawful manner. Every business has its laws, and these require of those who are engaged in it to so conduct it as that it shall not violate the rights that belong to others. Accompanying the ownership of every species of property is a corresponding duty to so use it as that it shall not abuse the rights of other recognized owners. (§§ 3479, 3514, C. C.; 731, C. C. P.)

Upon that underlying principle, neither State nor Federal legislatures could, by silent acquiescence, or by attempted legislation, take private property for a private use, nor divest the people of the State of their rights in the navigable waters of the State for the use of a private business, however extensive or long continued.

As we have already said, the rights of the people in the navigable rivers of the State are paramount and controlling. The State holds the absolute right to all navigable waters and the soils under them, subject, of course, to any rights in them which may have been surrendered to the general Government. (Martin v. Wade, 13 Pet. 410 .) The soil she holds as trustee of a public trust for the benefit of the people; and she may, by her legislature, grant it to an individual; but she cannot grant *152 the rights of the people to the use of the navigable waters flowing over it; these are inalienable. Any grant of the soil, therefore, would be subject to the paramount rights of the people to the use of the highway. And such was the doctrine of the common law. “ The jus privatum,” says Lord Hale, in Be Jure Maris, p. 22, “ must not prejudice the jus publicum, wherewith public rivers and arms of the sea are affected to public use.” It is, therefore, beyond the power of legislatures to destroy or abridge such rights, or to authorize their impairment.

As to the claim of right derived from prescription and the statute of limitations, it is sufficient to say that a right to continue a public nuisance cannot be acquired by prescription. (Pettis v. Johnson, 56 Ind. 139 ; Boston Rolling Mills v. Cambridge, 117 Mass. 396 ; Wright & Rice v. Moore, 38 Ala. 593 ; People v. Cunningham & Harris, 1 Denio, 524 ; Mills v. Hall & Richards, 9 Wend. 315 .) Nor can it be legalized by lapse of time. (§ 3490, C. C.) Against it, however long continued, the State is bound to protect the people ; and for that purpose the attorney general, as the law officer of the State, has the power to institute a proceeding in equity in the name of the people, to compel the discontinuance of- the acts which constitute the nuisance. ( County of Sacramento v. The Central P. R. R. Co., X. Pac. C. L. J. 27 ; 61 Cal. 250 ; People v. Stratton, 25 Cal. 242 ; Yolo County v. Sacramento, 36 Cal. 193 .) As was said in People v. Booth, 32 N. Y. 397 : “ The remedy to prevent the erection of a purpresture and nuisance in a bay or navigable river, is by injunction at the suit of the people by their attorney general. For all the people of the State are interested in the question, and have the right to use all bays and ‘navigable rivers within the State; and I think the attorney general may maintain an action in the name of the people of the State to prevent the obstruction of a public highway, which all the people have a right to travel, because all of them have an interest in such highways.”

There is no prejudicial error in the record. Judgment for a perpetual injunction and order affirmed.

Myrick, J., and Morrison, C. J., concurred.