Self-portrait of NASA's Curiosity Mars rover combines dozens of images taken during January 2015 by the MAHLI camera at the end of the rover's robotic arm. The pale Pahrump Hills outcrop surrounds the rover, and the upper portion of Mount Sharp is visible on the horizon. Darker ground at upper right and lower left holds ripples of wind-blown sand and dust. Wrist motions and turret rotations on the arm allowed MAHLI to acquire the mosaic's component images. Curiosity used its drill to collect a sample of rock powder from target "Mojave 2" at this site on January 31, 2015. The full-depth, sample-collection hole and the shallower preparation test hole beside it are visible in front of the rover. The Mojave site is in the Pink Cliffs portion of the Pahrump Hills outcrop. The outcrop is an exposure of the Murray formation, which forms the basal geological layer of Mount Sharp. For scale, the rover's wheels are 20 inches in diameter and about 16 inches wide. The drilled holes in the rock are 0.63 inch in diameter.