Opinion by

It is admitted defendants are the owners in fee of the coal underlying and on either side of the public highway, as it affects the present case. There is nothing to *550show how Krebs Road originally became a public highway. If, in the original taking, the right of property in any aspect had been injuriously affected, the ownei would have been entitled to damages; but, as the ownership of the coal is not in dispute, it is clear that when the road was laid out the owner had full dominion and control over the coal with the right of an absolute owner to it, subject, however, to the easement in favor of the public. He has the right to mine and remove it, but the removal must be done in such manner as not to injure the surface of the highway, or create a condition whereby injury may follow later. The servient estate must always be in such condition that the road may be continued as a highway for the traveling public in the future. From the undisputed facts this servient estate owed to the road above such support as will at all times preserve and keep it from subsiding.

An abutting owner may use the land (the surface) for his own purposes in any way not inconsistent with the public easement and is entitled to all profit and advantage that may be derived therefrom: 18 R. C. L., sec. 107, p. 121. “The rights and title of an abutting owner .......are subject......to the easement and servitude in favor of the public, and to the right of the public authorities to occupy the space above and below the surface of the way for any purpose within the scope of public uses to which highways may be put”: 13 R. C. L., sec. 108, p. 123. But above and beyond this reasonable use of the public, the owner undoubtedly retains the right to use his land; and so it has been held, where one owns the fee in the minerals under the surface of the highway, and the mines on the surface adjacent thereto, they may work such mines, but must do so in such way as’not to cause the road to subside: 17 Eng. Ruling Cases, p. 554.

The coal under the highway could not be removed without disturbing the surface; to mine it the surface itself, which includes the highway, must be physically displaced, stripped so that the coal might be taken out. *551The company’s right to do this was subordinate to the right of the public to the highway. This use, encroachment or obstruction (stripping) by the company was a nuisance per se, which could not be legalized unless the highway ceased to exist as such; in that event, the land reverts to the owners and its use is no longer a public one.

To cause the “land” to revert, the road must be vacated in the manner provided by law, and, as public highways are within the control of the Commonwealth, the statutory directions for their creation and abolishment must be followed. When counsel in this case agreed that the road should be vacated, thus permitting the coal company to continue the nuisance and the public to be deprived of the use of the highway for travel, they clearly exceeded any authority they had as attorneys and they attempted to do something which even the supervisors had no power to do; and the same may be said as to supplying the road vacated. To permit such an evasion of a legislative mandate as to highways would be to create an easy method to have important highways changed to suit the convenience of a few persons without notice to others interested who might be injured thereby. The Act of 1836 or 1911 should have been invoked.

The supervisors, as municipal authorities, were proper officers to ask for a compulsory mandate to redress the injury. It should not have been denied, as a clear legal right existed. Where there has been an invasion of a public right by the use, for private purposes, of that which belongs to the public, whether the injury be great or small, it is the continuing deprivation of that right which gives cause for equitable intervention to prevent the creation or the continuance of such wrongful exercise. This should be recognized for a broader reason where the injury is substantial and material, calculated not only to interfere with the right and comfort of the public as such, but possibly to the damage of individu*552als. So it has been, held that injunctions to restrain encroachments on highways, though they should be granted with care, will, when public rights are invaded, be granted. In such case no question of the amount of damages is raised, but simply the one of the invasion of a right: Reimer’s App., 100 Pa. 182, 187. A nuisance per se,' when public in its character, may, upon information by the attorney general, or at the suit of a municipality, be enjoined: Mint Realty Co. v. Wanamaker, 231 Pa. 277, 279.

The defendants did not acquire any right to excavate the Krebs Road for the purpose of their stripping operation because of any consent the supervisors of the township might have given, official or otherwise. In Pennsylvania, a highway is the property of the people,— not of a particular district, but of the whole State, — ¡ and when a public right has been acquired, it cannot be lost by nonuser or by municipal action not expressly authorized by law. Any occupation of the property inconsistent with the public right is a nuisance, and no length of time will legalize a public nuisance: Pittsburgh v. Epping-Carpenter Co., 194 Pa. 318. While laches may be imputed to the Commonwealth, or its representatives, it is done only in rare cases, as stated by our present Chief Justice in Bradford v. N. Y. & Penna. Tel. & Teleg. Co., 206 Pa. 582. Under the circumstances of this case, appellants lost no right in the prosecution of this litigation. They acted under what they believed to be lawful orders of the court; but defendants will not be heard to complain of this, as they have not met the obligation assumed in the unauthorized agreement and order.

The decree of the court below is reversed and a mandatory injunction is directed to issue as prayed for, and, owing to the peculiar circumstances caused by the orders of the first judge who heard the case, the issuance of the writ to be withheld for a period of six months, pending which time appellees may institute proper pro*553ceedings to have Krebs Road vacated and supplied, if it is thought proper so to do; or within which time the parties may, under the Act of 1911, change the location of the road as therein provided, on the conditions stated in the act, that the cost and expense should not exceed the sum of $300. This would not limit the amount respondents may decide to pay in order to accomplish the result. If the proceedings as instituted are prosecuted with due vigor, but are uncompleted at the end of the six months, the court below, in its sound discretion, may grant a further extension of time.

The decree is reversed at the cost of the appellees.