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A vertical hole, sunk down through the strata to reach the mineral which was to be mined. Shaft is usually pre-fixed with a functional term, air shaft, pumping shaft, winding shaft etc. See also Pit
The majority of its work involves attending incidents involving people or animals in difficulty in caves, potholes, mineshafts, on fells, crags or anywhere not accessible to the normal Emergency Services.
It is made up of over 80 well trained and well equipped volunteer cavers, climbers and mountaineers and is on call 365 days a year.
Rescuing exhausted and injured cavers and fell walkers who are lost or have broken bones is more the norm.
There are approximately 1,300 mineshafts in the Oklahoma portion of of the Picher Mining District, many of which remain accessible (Suman and others, 2000).
Objectives of the proposed investigation are to collect water-quality data from seven mineshafts excavated in the Boone aquifer and to compare those data to data collected approximately 25 years ago to determine changes in ground-water quality with time.
Locations of mineshafts would be determined from 1:24,000 topographic quadrangle maps, aerial photos, and RTK global-positioning survey measurements made in the field.
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