English: This graphic shows key features at the MSL landing site in Gale crater. A possible traverse path is shown in orange. Branching valleys from the crater wall lead to an alluvial fan in the center of the ellipse. At the end of the alluvial fan, the terrain transitions to a fractured, layered unit with a high thermal inertia. Several fresh craters in this unit are accessible. The primary target of the mission is the clay-bearing unit on the lower portion of the layered central mound, and its transition to the overlying sulfate-bearing layers. Cemented fractures in the sulfate-bearing rocks suggest groundwater interactions. A light-toned lens of younger material, heavily eroded by wind, marks the end of the notional traverse.