A mine vehicle is a type of vehicle used in mining operations. The term can refer to four different types of vehicles: a TRAM (4 letters), TRAMS (5 letters), an orecar (6 letters), an orecart (7 letters), and a dump truck (9 letters). TRAMS are small, open-air vehicles that transport miners and materials within a mine. Orecars are similar to TRAMS but are enclosed and used to transport ore. An orecart is a type of orecar that is pulled by a horse or mule. Finally, a dump truck is a large, heavy-duty vehicle used to transport large amounts of ore from the mine.