From L. aditus â€˜entrance, accessâ€™, from ad + itus.
- A horizontal or nearly horizontal passage from the surface into a mine as contrasted to a shaft which is a vertical entry passage. An adit may be used for ventilation, haulage, drainage, or other purposes.
#*2006, Mike Hetman, IronMiners?.com 1:
#*:The Old Mine is currently entered through an upper adit as the main is no longer accessible.