Takeoffs that could not be located:

• Coll d'Ares, Àger/Ager Leida — outside the curated takeoff dataset (8 flights)
• Unknown takeoff — no linkable takeoff on flightlog.org (39 flights)
• Raudoral. Ager — outside the curated takeoff dataset (2 flights)
• Col de Forclaz- Montmin — outside the curated takeoff dataset (1 flight)
• Chamonix, Plaine Joux — outside the curated takeoff dataset (7 flights)
• Annecy, Montmin, Col de la Forclaz — outside the curated takeoff dataset (1 flight)
• Chamonix — outside the curated takeoff dataset (11 flights)
• Plaine Joux — outside the curated takeoff dataset (3 flights)
• Plan de l'Aiguille — outside the curated takeoff dataset (2 flights)
• Valle de Bravo, El Peñon — outside the curated takeoff dataset (32 flights)
• Valle de Bravo, La Torre "Torres" — outside the curated takeoff dataset (2 flights)
• Serra da Estrela - Vale da Amoreira - Manteigas — outside the curated takeoff dataset (3 flights)
• Serra da Estrela - Azinha takeoff - Manteigas — outside the curated takeoff dataset (2 flights)
• Laragne, Sederon — outside the curated takeoff dataset (2 flights)
• Laragne, Chabre — outside the curated takeoff dataset (3 flights)
• St. André-Les-Alpes, Chalvet — outside the curated takeoff dataset (2 flights)
• Col de Bleyne — outside the curated takeoff dataset (4 flights)
• Gréolières, Mt. Cheiron — outside the curated takeoff dataset (8 flights)
• La Roque-Esclapon, Montagne de Lachens — outside the curated takeoff dataset (1 flight)
• Interlaken, Schynige Platte — outside the curated takeoff dataset (2 flights)
• Niederhorn, nära Interlaken — outside the curated takeoff dataset (1 flight)
• Gstaad, Wispile — outside the curated takeoff dataset (1 flight)
• Annecy, Talloires, Planfait — outside the curated takeoff dataset (1 flight)