And no it is not a dead body or a secret hatch. At least I don't think it's a hatch. So, yesterday Kev (my hubby) was mowing the yard and as he took a step back his foot stepped into this massive hole and he fell backwards. Luckily he didn't break his ankle, but it did get him to investigate what the hell it was. When we moved in three years ago we knew about a little hole in the yard and didn't think anything of it. But, I guess with all the rain that my area got a few weeks ago it eroded whatever it was down there. Later in the day, Kev picks me up from work and tells me his story. As soon as I get home I quickly went outside to investigate. I dig at the hole and discover a brick and a curved corner piece. When I pulled these pieces away, it opened the hole even wider and I can clearly see a vast cavern underneath the ground around four feet by four feet. I also noticed quite a bit of sand and a round edge. The area around the hole is very wavy and definitely unsafe to stand on. Now, I know when we bought the house it said our garage was farther back, nearer to the fence (you will see in picture) but this isn't anywhere near that. And there is no records of anything being there. All I can think is it's either an old building foundation or a well. Wow, sorry for the long post. Now for the pictures. Here is the brick. It reads: "St. Louis V & E. B. Co. Standard". It's very rough around the edges and appears to have sat underground for awhile. Strange that this is the only one I found so far. And here is the curved piece of concrete. Can't tell in the picture, but the top is curved and has an edge. Now the hole. That huge chunk in the top left is a large slab of concrete and right underneath it is the large cavern. All around the hole is sand that I had dug out to get the corner piece and brick out. And the area itself. The hole is under the crate (put it there so the dog doesn't fall through). You can see how it's slightly leaning and all around that area, about five feet radius around it, is rather wavy. The garage use to sit in that empty area in the left of the picture. One side of the old foundation wall is barely visible through the grass and I always hit it when mowing.