The old bus in which Chris McCandless died in 1992 in the interior of Alaska — made famous in Jon Krakauer's best-selling book "Into the Wild" and later in the Sean Penn film of the same name — long ago lost its windows to souvenir hunters.

A plaque inside the bus, installed by his family, commemorates his life. A recent visitor has described the site as a pigsty.

The same reasons that cost McCandless his life, trapped without enough food on the wrong side of a Teklanika River in full spate from summer meltwater, makes it a dangerous place to approach.