Spatial Boundary Analyzer & Territory Geographic Truth Explorer
Boundary Summary11 Borders Total
4,207 km
Total Land Border
Brazil (730 km)
Longest Border
2,951 km
European Mainland (8)
1,256 km
Overseas Territories (3)
Geographical Paradox: France's longest continuous land border is not with Spain (~656 km) or Belgium (~620 km), but with Brazil (~730 km) via the overseas department of French Guiana!
Segment Inspector
Brazil (French Guiana) LONGEST
Border Length:
730 km
Territory Type:
Overseas Department
Region:
South America
River Boundary:
Oyapock River
Treaty of Utrecht (1713) & 1900 Swiss Arbitration Boundary. Connected via the Oyapock River Bridge.