State fossil.

RCW 1.20.042
in effect
Sign in to generate a plain English summaryAsk Belisarius Agent
The Columbian mammoth of North America, Mammuthus columbi , is hereby designated as the official fossil of the state of Washington. The Columbian mammoth of North America, Mammuthus columbi , is hereby designated as the official fossil of the state of Washington.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=1.20&full=trueFetched: 6/28/2026

Starting a business in Washington? Washington LLC guide: costs and requirements