Nev. Rev. Stat. § 541.040
The district court sitting in and for any county in this state is hereby vested with jurisdiction, power and authority, when the conditions stated in NRS 541.050 are found to exist, to establish water conservancy districts, which may be entirely within or partly within and partly without the judicial district in which the court is located, for the purposes enumerated in NRS 541.030; but the terms of this chapter shall not be construed to confer upon such district court jurisdiction in proceedings provided for herein to hear, adjudicate and settle questions concerning the priority of appropriation of water between districts organized under this chapter and ditch companies and other owners of ditches drawing water for irrigation purposes from the same stream or its tributaries.
NRS 541.040