@caroldecker We use these at work. They are sometimes known as headworks or gas barrel covers. A borehole will have been drilled with a plastic pipe installed, usually to monitor gas and groundwater. The cover is to protect this installation.
We are proud to announce the Yorkshire Natural History Museum will be opening Saturday 13th August! 🎉
We are a small public #museum with a #geology, #palaeontology, and #botany collection, including a significant research collection of #fossils from the #Yorkshire Lias. 🐚