10 longest caves in North America

10. Sistema Huautla

• length: 89 km
• location: Mexico
• place in the world: 29

9. Sistema Purificacion

• length: 93.7 km
• location: Mexico
• place in the world: 26

8. Sistema K’oox Baal

• length: 100.4 km
• location: Mexico
• place in the world: 25

7. Fisher Ridge Cave System

• length: 209.2 km
• location: United States
• place in the world: 10

6. Lechuguilla Cave

fot. Dave Bunnell / wikipedia.org (CC BY-SA 2.5)

• length: 242 km
• location: United States
• place in the world: 8

5. Wind Cave

• length: 248.1 km
• location: United States
• place in the world: 7

4. Sistema Ox Bel Ha

• length: 271 km
• location: Mexico
• place in the world: 4

3. Jewel Cave

• length: 334.8 km
• location: United States
• place in the world: 3

2. Sistema Sac Actun

• length: 371.9 km
• location: Mexico
• place in the world: 2

1. Mammoth Cave

• length: 667.8 km
• location: United States
• place in the world: 1