Reconnaissance work began on the French side in 2002 with the excavation of access points at Modane, then Saint Martin la Porte (2003) and La Praz (2005).
Mont Blanc | Edwards Air Force Base | Channel Tunnel | Wright-Patterson Air Force Base | Guantanamo Bay Naval Base | Offutt Air Force Base | Maxwell Air Force Base | Ace of Base | tunnel | Nellis Air Force Base | Vandenberg Air Force Base | Ramstein Air Base | Eglin Air Force Base | Marine Corps Base Quantico | Tan Son Nhut Air Base | The Time Tunnel | Mont Saint-Michel | Marine Corps Base Camp Lejeune | Holland Tunnel | Fréjus Rail Tunnel | BASE jumping | Mont Ventoux | Marine Corps Base Hawaii | Clark Air Base | base on balls | Peterson Air Force Base | MacDill Air Force Base | Lackland Air Force Base | Kadena Air Base | Joint Base Lewis-McChord |