Lake Lewis Chapter lecture graphic for Missoula Floods and Columbia River Gorge geology with Jim O’Connor at the REACH Museum on November 3, 2026.

Event graphic promoting a Lake Lewis Chapter lecture featuring Jim O’Connor of the U.S. Geological Survey. The design features the Columbia River Gorge and includes the November 3, 2026, date, event time, REACH Museum location, free admission, livestream availability, and official program-partner logos.

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