Aspen? The Swiss Alps? The Himalayas? No. Much, much further away.
It's Mars, a small bit of the Mojave Crater, on the Xanthe Terra region, as imaged by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. That crater is 60km in diameters. And that slope is 4km long.
Right now, Brian Lam is wet and wants to be an astronaut. [NASA]