To find the lost treasure in Borderlands 2, you need to find 4 clues. The task prompts the player to open four switches. The player only needs to press the switches in the following order to complete the task and obtain rewards.
1. The first one is a bridge when you look to the right when you go out. The first one is on a bridge pillar;
2. Find a house similar to a warehouse as shown in the picture. When you approach it, there will be interactive prompts;
3. The third one is in a two-story dilapidated building. There are three switches on the container below the dilapidated building;
4. The last one is still in the house. Find a ladder. Climb up and you can see the game's logo, right at the logo;
5. Completing the mission will give you a gun with good attributes and a red and green treasure chest.