Thurston County, Washington

PHONE SCAM ALERT

Scam callers have been impersonating Court and Pretrial staff and Sheriff's Office deputies. Court staff do not call jurors and Sheriff's deputies do not collect fines by phone. Report scams to Thurston County Sheriff's non-emergency line at 360-704-2740 and you can verify your Jury Service by clicking here.

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.
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Thurston County Washington

Public Works

Glacial Heritage Preserve

The Black River-Mima Prairie Glacial Heritage Preserve, also called Glacial Heritage, is a special place that shows what land in the Puget Sound area looked like when settlers arrived in the 1800s. This preserve was purchased in 2005. Only 2.6% of restored prairie lands, like this one, still exist today. 

prairie flowers on Glacial Heritage in bloom. Purple camas and pink sea thrift are shown against a green sea of fescue, framed by a clear, blue sky,

Park Hours

  • Park closed to public use. Open to the public only once a year on Prairie Appreciation Day
  • Site access for educational or environmental activities
  • Request access with Parks & Trails - (360) 786-5595

Location

  • 15044 Mima Rd SW, Olympia, WA 98512

Features

  • 80 acres
  • This preserve features oak woodland and prairie grassland habitat types.
  • Wildflowers such as camas, golden paintbrush, sea thrift, and Oregon sunshine can be spotted in the spring months.
  • Birdwatching and wildlife viewing opportunities
  • Nature trails