Medusae Fossae Formation, Mars

Medusae Fossae Formation, Mars
Zoom in on the image Zoom    Download this file Download

The Medusae Fossae Formation is a collection of hills and long mounds that cover large areas near the Tharsis volcanoes. These deposits probably consist of ash and small rocks that rained from the sky during huge explosive eruptions. They have since been sculpted by the Martian winds.