The Thunderstorm Valley is a valley inside a massif where a lot of plateaus are located. The area consists of those platforms and the area below as well as some caves and a lake. The main source for Lagacyte Ore is found here.
- Base Camp: The Base Camp is inside a gorge. One way leads to Area 1 and a secret way to Area 6.
- Area 1: Area 1 is in a gorge below the platform Area 6. Some plants and rocks are found in this narrow gorge that goes to Area 2. Also a Felyne village is found here.
- Area 2: The gorge gets a bit wider and more monsters are found here. One path brings you to Area 3, the second one to Area 8.
- Area 3: Another ravine area beneath Area 10. A lot of Lagacyte Ore can be found here. The caves of of Area 4 can be reached from here.
- Area 4: The first cave area with crystals growing at one wall. One path goes to Area 5, the second to Area 8.
- Area 5: Area 5 is another cave zone that brings you up to Area 6. It's used as nest by some monsters.
- Area 6: One of the plateau areas. Some berries grow on the edge of the platform and jumping down gets you to Area 1. Another path leads to Area 7.
- Area 7: Another platform with some rocks on it. Jumping down brings you to Area 2, another way goes to Area 8.
- Area 8: The shore of the lake and a partly aquatic area. Swimming out in the lake leads to Area 9.
- Area 9: Area 9 is the deepest part of the lake close to Area 10. It's a dead end and can only be left over Area 8.
- Area 10: The highest platform most lightnings come down. Electricity loving monsters gather here. Jumping down is a way to Area 3, but it also leads to a cliff that leads to Area 9 if jumped down.
- Secret Area 1: An area above the entrance of the cave in Area 6. It can only be accessed when starting there. Rare ores and insects can be found here.
- Secret Area 2: A small area that is accessible by jumping down from Area 10 to Area 9 in a certain direction. A lot of bones, Elder Dragon relics among them, are found here.
- Thunderstorms regularly appear and hit the plateaus, especially Area 10, and inflict damage and thunderblight.
This area harbors many darkness loving monsters below the platforms and in the caves and electricity loving monsters up on the plateaus and in the lake. Some monsters may be overcharged with electricity through the thunderstorms.
Aptonoth, Konchu, (will be updated with the monsters)