This regional image shows the location (outlined in white) of the 3-D view for this site. Nearby geologic and geographic features of interest have been labeled. This view provides a wider context for interpreting the relatively high-resolution stereo view.

This view is part of a Voyager mosaic of Io and measures ~1250 kilometers across. Io is roughly 3630 kilometers across and is the third largest of Jupiter's four major satellites. Io is similar in size to Earth's Moon and is composed of rocky material and minor amounts of sulfur.