Mars Rocky Horizon

On a clear day on Mars, you can see tens of thousands of rocks. Two high-resolution scans by one of Viking 2's cameras were mosaiced to create this scene looking northeast to the horizon some three kilometers (two miles) away. The rock in the lower right corner is 10 inches across. The largest rock near the center of the picture is about two feet long and one foot high. What appears to be a small channel winds from upper left to lower right. Slope of the horizon is due to the eight-degree tilt of landed spacecraft.