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Thurston County, Washington

The content on the Thurston County website is currently provided in English. We are providing the “Translation” for approximately 10 languages. The goal of the translation is to provide visitors with limited English proficiency to access information on the website in other languages. The translations do not translate all types of documents, and it may not give you an exact translation all the time. The translations are made through an automated process, which may not result in accurate or precise translations, particularly of technical and legal terminology.

Public Works

Glacial Heritage

The Black River-Mima Prairie Glacial Heritage Preserve, also called Glacial Heritage, is a special place that shows what the land in the Puget Sound area looked like when settlers arrived in the 1800s. 

Hours

  • Park closed to public use 

Location

  • 15044 Mima Rd SW, Olympia, WA 98512

Features

  • Only 2.6% of this type of land still exists today
  • It was bought in 2005 to protect the rare prairie ecosystem 
  • Open to the public only once a year on Prairie Appreciation Day
  • Site access for educational or environmental activities
  • Requests access with Parks & Trails - (360) 786-5595