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Cayenne / French Guiana

1604 – present
ColonySouth America

France's persistent equatorial colony, anchored at Cayenne, between the Maroni and the Oyapock rivers.

Survives as French Guiana, an overseas department of France since 1946 — the European Union's only continental South American territory, enduring to 2026.

Borders in 2026 · drawn from 7 sourced border frames
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Borders over time

The atlas holds 7 border frames for Cayenne / French Guiana — the shape you scrub through changes in 1604 · 1683 · 1765 · 1848 · 1905 · 1934 · 1946.

Further reading

Sources