delivered the opinion of the court.
The parties are appropriators of water from the La Jara river, a natural stream in water district No. 21, the appellee being the senior appropriator, the head gate of whose ditch is lower down the stream than that of appellant. After these appropriations and decrees therefor were made divers other persons made appropriations of water from another natural stream in the same water district — Conejos' river-— which has no connection whatever with the La Jara. These subsequent appropriations were not made for the purpose of irrigating lands whose natural drainage is into the Conejos, but were diverted and carried in ditches over an intervening ridge and spread upon *107the lands of the appropriators which lie in the natural watershed of the La Jara river, higher up that stream than the lands which belong to the parties to this proceeding. The appellant claims that some of the water thus applied passes by seepage from the lands thus irrigated and first rises again on lands belonging to or controlled by it, and some of it first rises on lands of other parties, while all of it ultimately reaches the La Jara channel.
In its statement of claim appellant alleges that it began to make use of these seepage waters in 1886 or 1887, and it claims, by virtue of the appropriation then made — the right to which, it is said, is recognized and confirmed by an act of the general assembly passed in 1889 — so much of such seepage water as first rises upon lands which it owns or controls. In this proceeding, brought for the purpose of having its right thereto adjudicated, the matter was referred to a referee for findings and a report. He heard evidence, and his conclusion was that the evidence was so contradictory that he was unable to find therefrom that appellant had made such appropriation, and he recommended a decree accordingly. The district court affirmed these findings and rejected the claim.
1. Appellant’s contention is that it has a right, recognized and confirmed by the general assembly, to make an appropriation of seepage water. The act relied upon is found in Session Laws of 1889, page 215, and reads:
“Sec. 1. That all ditches now constructed or hereafter to be constructed for the purpose of utilizing the waste, seepage or spring waters of the state shall be governed by the same laws relating to priority of right as those ditches constructed for the purpose of utilizing the water of running streams: Provided, that the person upon whose lands the seep*108age or spring waters first arise shall have the prior right to such waters if capable of being' used upon his lands.”
Whether and to what extent this act is constitutional we decline to say, for the ease as made does not come within its provisions. It will be observed that the act purports to malm applicable to appropriations of waste, seepage and spring waters of the state the same laws that govern appropriations of the water of running or natural streams, with the proviso that- the person upon whose lands the seepage or spring waters first arise shall have the prior right thereto, if the same can be used thereupon. Whatever may be the rights of the owner of the overlying lands! to intercept and use upon their surface- the waters seeping or percolating beneath them and before they reach a natural stream, or the right of a landowner to use the waters of a spring that rises thereon, no such question .is here, involved. The appellant seeks to make an appropriation of what it calls seepage water after the same has reached the channel or bed of a. natural stream. As we read the record, the appellant does not claim seepage water which first rises on its own lands at a point outside of the natural stream that flows through them, but waters which first rise- in the bed of the stream itself, not before, but after, they actually reach the channel and form part of the volume of the stream. Nor does appellant claim that this seepage forms part of any water the right to the original or first use of which belongs to appellant as an appropriator, and has been once utilized and turned into the stream with an intent on his part again to use it, or that it is the- water that naturally percolates through its own soil. It is water the original right to use-whieh for irrigation belongs to and has been fully utilized by others and afterwards, by natural law, percolates therefrom and *109through appellant’s lands and reaches and first rises in the bed of a stream running through the same, which appellant claims the right to divert from the stream itself as against prior appropriators therefrom. We do not understand that this statute was intended to apply to such appropriations. If valid at all, it is applicable only to appropriations of waste, seepage and spring waters before they reach the channel or bed of a natural stream, whether by natural surface flow, by percolation or by being artificially turned into the- same. After waste waters reach the stream, unless there is then an intention by the owner to reclaim them, they become part of its volume, and inure to the benefit of the appropriators of its waters, to be-enjoyed in accordance with their numerical priorities. That this is the law when waste water is turned into a natural stream, with no intent of the owner to reclaim it, has been expressly decided. There is no- difference in principle between waste water thus added to a natural stream and water which, by natural law, so finds its way into such channel by percolation, surface or subterranean flow.—Storage Co. v. Reservoir Co., 25 Colo. 87-94; Kinney on Irrigation, §§ 183, 259; Clark et al. v. Ashley et al., 34 Colo. 285; McClelland v. Hendrie, 3 Colo. App. 434.
2. If, however, this were a case within the statute;, and if it be conceded that the statute, is applicable and constitutional, appellant has failed to sustain its claim on that theory. As already said, in discussing the first proposition, the water which it claims as seepage water, as is admitted, comes originally from another stream in another watershed having no connection with the La Jara river, and no claim is made thereto by those who first diverted it. After it is spread upon lands constituting a part of the watershed of the La Jara all of it to which appel*110lant asserts any right comes naturally by seepage or percolation into the channel of that stream and there first rises. All of the water taken from the Conejos river is spread upon lands belonging to various persons, and by percolation reaches therefrom to lands of appellant and others, but it is only that portion which first rises upon lands owned or controlled by appellant, after it reaches the same in the bed of the river, that it claims by virtue of the appropriation here asserted.
The referee found, and the district court came to the same conclusion, that the evidence did not support this contention. Appellant, however, says that the preponderance is in its favor, and properly insists that it is our duty to weigh and sift this evidence, since-the witnesses were not present before the district judge and the findings of the referee are not binding upon an appellate court in the sense they would be if the trial judge whose judgment is reviewed had seen the witnesses and heard them testify. That duty we have tried to perform, and have carefully read the evidence, and we cannot say that the district court erred in its findings. In the first place, the evidence is conflicting as to whether or not the water which appellant has collected in the stream itself by the construction of dams is seepage water proper; or if so, how much is natural seepage and how much is the Conejos river increase, or how much comes from the defined subterranean channel of the stream itself. It is a well known fact that some streams in this state, after running for less or greater distances on the surface, sink, and by a well defined subterranean channel flow for a number of miles and then come to the surface again.—Platte Valley I. Co. v. Buckers I. Co., 25 Colo. 77.
The method which appellant employs to collect and divert the so-called seepage water is by driving *111two- parallel rows of piling in and across tlie channel of the river the hanks of which are five or six feet high and filling in between the two rows so as to prevent the water passing from below the artificial dam thus constructed. When the water is thus raised high enough it is carried through ditches dug for the purpose to the lands to be irrigated. At best it is largely a matter of opinion from what particular source come the waters that reach the. channel of a natural stream. Springs, surface drainage, percolation, seepage other than that naturally coining through adjoining lands, the subterraneous flow, may all contribute to and form part of its visible volume. The witnesses here are not in accord on this point. Some' say that the water claimed by appellant is seepage water whose presence in the valley of the La Jara is- due to the diversion from the Conejos. Others deny this. The burden was on appellant not only to show this fact but also the quantity.—Howcroft v. Union etc. Irr. Co., 25 Utah 311. We find no estimate even of the latter. Appellant relies largely on the fact, to which there is evidence, that the river bed of the La Jara for many miles above its lands during most of the summer season is dry, while through its lands there is running water. And the volume thereof, at this point, is much larger than it was before the water was brought over from the Conejos. But how much of the water that it eollécts at and by its dams in the river bed comes from Conejos seepage and how much of that first rises in its own lands, how much is brought up from beneath the surface by driving of the piles or how much of the surface channel is the result of contributions thereto from other sources is not shown. We appreciate the difficulty of making clear and satisfactory proof in such cases, and have carefully searched the record to see if reliable and definite data are there found on which some award *112to appellant can. be based, But we are unable to find such.
It is needless to say that some of the questions argued by counsel are of vast importance in this state, but we do not believe that the case, as made by the evidence, calls for an adjudication of the relative rights of appropriators of the waters of a natural stream and of owners of adjacent lands who seek to intercept on their own lands, and before the same reach the stream, waters that otherwise would come into the channel by percolation or seepage.
For the reasons given, the judgment should be affirmed- Affirmed.
Ci-iiee Justice Gabbert and Mr. Justice Steele concur.