> ## Content Index
> Fetch the complete content index at: https://www.cascadepbs.org/llms.txt
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# Extended Cut: The Mystery of the Mima Mounds
- URL: https://www.cascadepbs.org/show/mossbacks-northwest-2/extras/the-mystery-of-the-mima-mounds-dy8zjc/
- Published: 2026-03-04T00:15:54.000Z
- Updated: 2026-03-04T13:30:10.000Z
- Description: Co-hosts Knute Berger and Stephen Hegg explore the Mima Mounds.
- Author: Cascade PBS Staff
- Tags: Mossback's Northwest, #ZZZ_Show_50744e68-2011-417f-9f73-f880b010d33f, #v1.7, #ZZZ_Extra_88eac9b0-06eb-4fbc-9ada-4fdb38217c3a, #extra

Despite two centuries of speculation and science, a strange prairie full of small, evenly-spaced hills south of Olympia remains a mystery. Listen as Mossback co-hosts discuss the many theories of the famous Mima Mounds’ origins, including earthquakes, fires, floods and ancient gophers.