Idaho Code § 55-1910
The record of survey filed with the county recorder of any county shall be assigned an instrument number and shall be bound or filed with other plats of like character in a book or file or through an approved electronic storage system designated as "Records of Surveys."
Proper indexes or electronic segregated searchable and retrieval files shall be kept of such record of survey by section, township and range.
The survey map transparency shall be stored for safekeeping in a reproducible condition. It shall be proper for the recorder to maintain for public reference a set of counter maps that are prints of the transparencies. The transparencies shall be produced for comparison upon demand, and full scale copies shall be made available to the public, at direct cost, by the county recorder.
Idaho Code § 55-1910