Figure 2 - Mars ridge

Two east-west branches of an FSR. These preserve an area where a river split and then rejoined (off image). The lower branch is heavily eroded and quite spread out, the upper branch is narrower but more clearly preserved. These may have been exposed for different amounts of time, undergone different geological processes, or represent different periods of river activity. There are remnants of an infilling material within the ridge and a meander where the branch turns back towards the lower trunk. Between the two branches is a kind of mesa, this may be a pedestal of harder material or a crater that was filled in with the same material as the FSRs.