Me and my mates were out hiking in the woods when we found this mine. At first we thought it was a cave, however when we climbed down we realised it was a mine. I did some research and it's an abandoned coal mine that shut down in 1911, its also located close to a sandstone quarry that was used to build a nearby mill in Lancashire.
Here's a link to the video that we took when we explored it, you can see more of the features in the video.
https://m.youtube.com/watch?v=Z5rAm4KHCOw 