* Shaft: A vertical opening that leads down to the mine workings. Shafts are usually used for transporting ore, personnel, and equipment.
* Adit: A horizontal or nearly horizontal opening that leads into the mine. Adits are often used for drainage or access to areas that are too deep for surface mining.
Other terms used less frequently include:
* Winze: A vertical shaft that connects different levels of a mine.
* Raise: A vertical shaft that connects a lower level of a mine to a higher level.
The specific term used for the entrance will depend on the type of mine and the specific geological conditions.