Home | Welcome. This is the index page for the SGMRG (South Gloucestershire Mines Research Group). You can view our introduction, aims and upcoming events on this page. Please choose a link from the list on the left to see other items including infomation on local mining activities, maps to events and our new book for sale. This is the website for the South Gloucestershire Mines Research Group, covering the Bristol and South Glos minefields