Mercury - Mariner 10

Scarp feature on the flat plains of Mercury

Mercury
Mariner 10 image showing a scarp on the plains of Mercury. The SW-NE trending scarp, which may have been formed by compressional stresses, is radial to the Caloris Basin, to the southwest (North is up). The image is about 240 km across. (Mariner 10, Atlas of Mercury, Fig. 3-11)

Mercury 
Mercury: Geology 
Impact Cratering