Soils of the Holdrege series, classified as Typic Argiustolls, fine-silty, mixed, mesic, is hereby adopted as the official state soil of Nebraska.
Neb. Rev. Stat. § 90-116
State soil; Holdrege series
Laws 1979, LB 475, § 1.
Official source: Nebraska Legislature. Reproduced from public-domain Nebraska statutes; confirm against the official source for the current text. Not legal advice.