Iowa Code § 353.1A
The board of supervisors of any county where there is no privately owned quarry, or when a privately owned quarry is unable to supply limestone in the same amount and at the same price and terms, shall have the jurisdiction, power and authority, at any regular, special or adjourned session to establish, locate, acquire by purchase or lease for the county use, any limestone quarry not at that time being operated by private individuals, corporations or associations, suitable for agricultural purposes. Such quarry shall not be so established, located, acquired, or leased unless and until the board has determined by actual investigation that the county can produce by such method lime at less cost than lime of the same quality may be purchased by the county and delivered in the county from other sources.
Iowa Code § 353.1A