This picture shows the area on Mars around Gusev Crater. The left part of the picture is a black & white photo of the area. In the right part of the picture, the colors show how high (or low) the land is. Low places are shown as green. High places are shown as orange and red. The middle part of the picture shows all of Mars. Gusev crater is near the middle of this view of Mars.
Images courtesy NASA.