Opinion by

This is a controversy between neighbors over a very narrow strip of land lying along the boundary line between them. Their farms are on adjoining warrants. The elder of these was located in 1773 by an ancestor of the defendant, and the title to the farm on which he now resides has been in the descendants of the warrantee continuously from the time of its original location to the present. The warrant on which the plaintiff’s farm is, was located about 1790 as an adjoiner of the elder warrant, and the line as run in 1773 became thereby the boundary of the younger warrant. There was evidence tending to show that for more than half a century both farms had been continuously occupied by their respective owners, and that a fence had been maintained as a division or line fence between them, up to which each had claimed and occupied without the slightest objection on the part of the other. The line of the fence which extended along most of the common boundary was intended, and assumed, to be upon the warrant line, and the improvements along it had been made to conform to it on both sides. In 1890 the plaintiff acquired his title to the farm lying within the younger warrant. The fences along the line were then standing as they had stood for many years before; but he conceived the idea that they were not, as to the part of the line involved in this litigation, standing on the exact site of the line of 1773, and this action of ejectment was brought for the avowed purpose of compelling the removal of the fence to what he regarded as the true line of the original warrant survey. The case was tried in the court below as depending on the answer to the question, Where was the line of 1773 actually run ? The assignments of error complain of this mode of trial, and of the refusal of the court below to submit to the jury the question whether the owners of these farms had not by their treatment of the line fences established for themselves the location of the line? The maintenance of a line fence between owners of adjoining lands by their acts, up to which each claims and occupies, is a concession by each of the open adverse possession by *85the other of that which is on his side of such division fence, which, after twenty-one years, will give title, though subsequent surveys may show that the fence was not exactly upon the surveyed line. There was evidence given by both the parties upon which the defendant was justified in asking the submission of this question to the jury; and if the fact had been found to be that a division fence had been maintained by the owners of these farms for more than twenty-one years before this suit was brought, which had been built and maintained as a line fence, extending over that part of the line now in controversy, we think the verdict should have been in favor of the defendant. The value of such a fence does not rest upon the acts of him. who alleges its existence merely but upon its recognition and maintainance by the owners of the farms which it separates, as the line between them. After twenty-one years of occupancy up to' a fence on each side, as a line fence, it is not material to inquire whether the fence is on the right line or not: Brown v. McKinney, 9 Watts, 567. If this question had been submitted to the jury and they had found against the defendant upon it, then it would have become the duty of the jury to inquire into the exact location of the warrant line established in 1773, and to have adopted it as the boundary line between these farms. But they should have been directed to inquire in the first place whether the owners of the land on both sides of this line had not in effect agreed upon its location, built their division fence accordingly, and held and occupied respectively up to the fence as their common boundary for more than twenty-one years before this suit was brought. If this fact had been found for the defendant he was entitled to a verdict regardless of the true location of the warrant line.

The judgment is reversed for the reason now stated and a venire facias de novo is awarded.