Have you ever seen one of these?
No, it isn’t a tiny volcano!
It is a mud bug chimney. I had never heard the term until we stopped in east Texas. Nor had I seen chimney’s like this. A mud bug is another name for a crayfish, or a crawfish, or a crawdad, or a freshwater lobster. The chimney’s were in a grassy area of the campground. Evidently the water table is pretty close to the surface in this part of the country!