Size Duel deck / Rivers, falls and long things
Loire
Length: length, source to mouth
about 1,012 km (628.8 mi)
France’s longest river.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); the server could not read at least one counted page (blocked or PDF), where Codex’s own check found the quote; reviewed by Claude (AI build agent). Quotes are short passages from each source.
“1012 km”Lex, Danish national encyclopedia: source, retrieved 2026-10-21; quote re-found by the server check
“1 012”Eaufrance, French public water information service: source, retrieved 2026-10-21; server could not read the page; quote found by Codex
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