The canyon highlighted in the annotated version of the image below is the biggest one, with a width measuring 45 miles. Those green squiggles beside it are smaller, six-mile-wide canyons, while the pink and blue ones are valleys. The places colored in red are pits -- NASA believes they were caused by the ground giving out after the ice underneath melted or sublimated.

Note that the area in this image is part of Lowell Regio, named after Lowell Observatory founder Percival Lowell whose efforts led to Pluto's discovery. It was captured by New Horizons' Ralph/Multispectral Visible Imaging Camera (MVIC) before its closest approach in July 2015. Now, if you've had enough of Pluto and all its photos, you may want to set a countdown timer. NASA's Juno mission will reach the gas giant in 130 days, almost five years after it took off.