Size Duel deck / Rivers, falls and long things
Multnomah Falls
Height: total drop of both tiers
about 189 m (620 ft)
Two tiers in Oregon’s Columbia River Gorge, counted together.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); every counted quote re-found on its page by the server check (content-verify); scope and plausibility reviewed by Claude (AI build agent). Quotes are short passages from each source.
“620-foot”National Park Service: source, retrieved 2026-10-21; quote re-found by the server check
“620 foot”U.S. Geological Survey: source, retrieved 2026-10-21; quote re-found by the server check
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