I am happy to stay in Great Wyrley.
Erm, aren't you in the middle of a coalfield there Roy? Plenty of opportunity for surprise hole appearances...
Nothing on the 1883 OS map for my ground, for earlier I would have to locate tyth maps. But Norton Cannock is about 250 metres north of me, now a chalet park. Its workings pass under Long Lane north of me to connect with the old Cannock Lodge pit to the south, at a depth of about 140 yards. The latter is now empty fields.
Most of the sites where dozed into the shafts after abandonment, a deadly practice in metal mines but barring a bit of settlement its rare for any of the coal shafts to reopen around here. Possibly two or three in the last 30 years.
There was the upending Ford on the car park at Rushall
Of course, the Coal Authority are responsible for coal shafts, so we are basically well covered around here.