Idaho Code § 43-1001: Petition for annexation of land.

The holder or holders of any title, or evidence of title, representing any body of lands, may file with the board of directors of an irrigation district a petition in writing praying that said land may be annexed. The petition shall contain a legal description of the lands, the proposed method by which water will be delivered and any other information the district may require, and the petitioners shall state under oath that petitioners hold the title of one-half (1/2) or more of said lands.