An Abandoned Shed

We were driving through the North Pennines trying to get to an abandoned mine but the road was closed and we couldn't really be bothered to drive miles out of our way to go around (I'll definitely go back in a few weeks), so we spent the day just exploring parts of the area we hadn't been to. I spotted this creepy little building from inside the car so we turned around and pulled up. There was a 'no access' sign but hey, not even scared (that's a lie I was a little scared). I think this was an old storage or work shed for the nearby reservoir? There was all sorts of machinery and containers inside. Either that or the locals are making moonshine in there.