In the inner crater fumarole activity can be seen.

The inner crater is home to a variety of snakes species.

Fumaroles exist inside the inner crater and on the rim of the eastern, outer crater.

Within this caldera is an inner crater, the Reusch Crater.

A hilly ridge area runs from this inner crater toward the south-east.

The inner crater is filled by a crater lake.

This inner crater is filled with water.

The research team will establish a base camp and control center 1.4 miles from the rim of Mount Erebus's inner crater.

A successful landing was made in the reasonably smooth plateau of the inner crater, and the work begun.

The inner crater occupies nearly three quarters of the crater diameter.