Gale is a crater, and probable dry lake, at 5.4°S 137.8°E in the northwestern part of the Aeolis quadrangle on Mars. It is 154 km in diameter and estimated to be about 3.5–3.8 billion years old. From Wikipedia
The Mars Reconnaissance Orbiter’s HiRISE camera photographed Curiosity traversing Gale Crater, revealing its progress toward key geological formations.
