Enter Dahl mine is an objective in the Story Mission, Winging It in Borderlands 2: Commander Lilith and the Fight For Sanctuary
- You need to get into the nearby Dahl mine to reach the needed scientist to cure this virulent strain of spores.
- Jump off the ledge to the Northeast (to save having to loop around).
- Go to the nearby bridge to the North and head across it.
- Head past the Catch-A-Ride Station and vending machines and look along the right-hand side of the wall.
- Approach and interact with the large terminal there, but the door to the mine will refuse to open and enemies will start to rush you.