Petitioners, the Humphreys, sought cer-tiorari from the court of appeals’ opinion in
Southwestern Development Co. v. Humphrey,
*639 I.
SWDC sued the Humphreys for breach of contract, but withdrew its claim when the Humphreys counterclaimed, asking for declaratory judgment as to the water rights in the disputed water court decrees. The two basic issues were (1) ownership of rights under certain water right decrees relating to nontributary ground water, and (2) validity of a lease between SWDC and the Humphreys. The district court heard two days of testimony and received numerous documents in evidence. Details of the various conveyances and contractual agreements were set forth in the district court’s “Findings of Fact, Conclusions of Law, Judgment and Order.” After tracing the chain of title to the tracts of land and wells in dispute the judge entered a declaratory judgment, holding that title to the decreed water rights was vested in the Humphreys. The district court found the lease valid.
SWDC appealed on both issues. The court of appeals affirmed the district court’s ruling as to the lease. On the issue of title to the decreed water rights, however, the court of appeals held that “[t]he title to decreed water is not proper subject matter for determination by a district court unless properly presented to the designated water judge of the water division encompassing the district_”
SWDC,
II.
As a threshold matter, we find that the parties reached a settlement after certiora-ri was granted. The parties urge us to address the jurisdictional holding of the court of appeals’ opinion because of its statewide impact on water law practice in Colorado.
The general rule is that when issues presented in litigation become moot due to subsequent events, this court will decline to render a written opinion on the merits of an appeal.
Beeson v. Kiowa County School Dist.,
Second, we may hear a moot case if “the matter involves a question of great public importance or an allegedly recurring constitutional violation.”
Zoning Bd. of Adjustment v. DeVilbiss,
III.
The court of appeals’ opinion interpreted the jurisdiction of water judges under section 37-92-203(1), which read at the time:
Water judges — jurisdiction. (1) There is established in each water division the position of water judge of the district courts of all counties situated entirely or partly within the division. Said district courts collectively acting through the water judge have exclusive jurisdiction of water matters within the division, and no judge other than the one designated as a water judge shall act with respect to water matters in that division. Water matters shall include only those matters which this article and any other law shall specify to be heard by the water judge of the district courts.
§ 37-92-203(1), 15 C.R.S. (1973) (emphasis added).
In 1985, subsection 203(1) was amended to add the following provisions:
Water matters include determinations of rights to nontributary ground water outside of designated ground water basins. Judgments and decrees entered prior to July 1, 1985, in accordance with the procedures of sections 37-92-302 to 37-92-305 with respect to such ground water shall be given full effect and enforced according to the terms of such decrees.
§ 37-92-203(1), 15 C.R.S. (1986 Supp.). 2
The issue before the court is whether a dispute over ownership of decreed water rights arising from various conveyances of title constitutes a “water matter” under section 37-92-302(1), thus bringing it exclusively under the subject matter jurisdiction of the water courts. Resolution of what constitutes a water matter turns on the distinction between the legal right to
use
of water (acquired by appropriation), and the
ownership
of a water right. A water right is “a right to use” of water, acquired by appropriation. § 37-92-103(12), 15 C.R.S. (1973). This appropria-tive right is only a legal right to
use
of the water. “A validly adjudicated water right gives its holder a special type of property right” and water rights may be bought and sold, like other kinds of real property, “without regard to the real property over which the water flows.”
Navajo Develop
*641
ment Co. v. Sanderson,
In contrast, ownership of water rights (which have already been decreed by the water court) is a different concept. Resolution of ownership disputes arise in a number of contexts, including but not limited to quiet title proceedings, real estate matters, dissolution proceedings, and other civil actions in the district courts. An example is the case at bar in which the district court was required to analyze deeds, contracts, and other documents that established the chain of title to certain decreed water rights.
The practice in this state has long been that district courts have power to adjudicate-disputes over ownership of water rights.
Navajo Development Co. v. Sanderson,
The case before us required a determination of the chain of title leading to ownership of decreed water rights. If we followed the court of appeals’ reasoning, all ownership adjudications would now fall under the exclusive jurisdiction of water judges. The result would be to divest the district courts of jurisdiction to hear disputes over ownership of previously adjudicated water rights. As can be seen from the cases cited above, these disputes arise in a variety of civil contexts, often in conjunction with the conveyance of property and other rights.
We acknowledge that in some cases water judges have been permitted to exercise “jurisdiction over private agreements which may affect [water right] priorities” because the water judge “wears two hats,” as both a district judge and a water judge.
Perdue v. Fort Lyon Canal Co.,
Accordingly, we reverse the court of appeals’ holding as to jurisdiction.
Notes
. We granted leave permitting the following to file briefs as amici curiae: Cache La Poudre Water Users Association, Beverly Building Co., H. Grady Culbreath, Jr., Jacqueline Gail Cul-breath, Teodoro Roybal, Silvercreek Development Co., Silvercreek Ski Co., Ltd., Silvercreek *640 Water and Sanitation District, William R. Steur, The Colorado Water Congress, Robert L. McCormick, Upper Gunnison River Water Conservancy District, First National Bank of Glenwood Springs, Colorado, First National Bank of Meeker, Colorado, Production Credit Associations of Colorado, and Virginia Mae Milam, a/k/a Betty Milam, Personal Representative of the Estate of Skogsberg.
. Section 37-92-203(1) states in pertinent part: Water matters shall include only those matters which this article and any other law shall specify to be heard by the water judge of the district courts. Water matters include determinations of rights to nontributary ground water outside of designated ground water basins.
§ 37-92-203(1), 15 C.R.S. (1986 Supp.) (emphasized portion indicating amendment effective October 11, 1983).
The General Assembly amended the jurisdictional provision of the Water Right Determination and Administration Act of 1969, as shown above, in response to a case decided by this court,
State of Colorado, D.N.R. v. Southwestern Colo. Water Conservation Dist.,
