Forgotten

The obscure mountain trail you started down hours ago has brought you to an ivy-covered chain-link fence. Upon closer inspection, you see a small opening. Your curiosity kicks in, and you find yourself on the other side.

As you continue down the path, the ground rises and then falls. Between the trees, a structure gradually reveals itself.

The building is industrial, and yet, it blends into the natural surroundings. A driveway leaves the building to one side. Beyond the building, a river flows with a bit of a current, due to the slope of the land. The path you are on leads to the door in what you might call the side of the building.

You approach the door and notice that it is held closed with a rusty padlock.

What do you want to do?