Title 43 › CHAPTER 15 — APPROPRIATION OF WATERS; RESERVOIR SITES › § 661
Protects water-use rights that were first taken and used and are accepted by local customs, laws, or court decisions for things like mining, farming, or manufacturing. People who already have those water rights and the right to build ditches or canals can keep and use them. If someone building a ditch or canal damages a settler’s use of public land, the builder must pay for the damage. Any land patents, preemption claims, or homesteads are subject to those existing water rights and related ditch or reservoir rights.
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Public Lands, Source: USLM XML via OLRC
Legislative History
Reference
Citation
43 U.S.C. § 661
Title 43, Public Lands
Last Updated
Aug 21, 2026
Release point: 119-102