Those purple clumps flanking its right side (your left) are mountain ranges, while the red area in the bottom left edge is a possible cryovolcano called Wright Mons. The dark brown strip on the left side beside the purple mountain ranges marks the beginning of the Cthulhu Regio, dotted by impact craters colored in yellow. As you can see below, NASA describes each location as accurately as possible, whether its rubbly, degraded, eroded or pitted.

The map was created from 12 photos captured by New Horizons' Long Range Reconnaissance Imager, 48,000 miles away. They were taken almost two hours before the probe's nearest approach on July 14th, 2015 at a resolution of around 1,050 feet per pixel. NASA is taking a closer look at those photos from last year to determine which part goes on top of which. That will give the agency a pretty good idea if formations are older or younger than the ones beside them and to ultimately conjure up a timeline that shows when each one appeared on Pluto's surface.