Alert - Mammoth Cave is in an area highly endemic to histoplasmosis
Histoplasmosis is a serious infection caused by breathing in spores of a fungus often found in bird and bat droppings. Infants and immunocompromised persons are especially vulnerable. Click the link for more information. More »
The Register Room
Did You Know?
The grease-oil lamp was used to illuminate Mammoth Cave for more than a century. Designed after New England whale-oil lanterns, these lamps used cooking grease to light the way.