Justin Cowart is a geologist and amateur astronomer living in Carbondale, IL. Justin has had a lifelong interest in exploring space, and one of the most fun ways to satisfy that curiosity has been looking at the images returned by space missions. His interests lie in reprocessing old data (which looks surprisingly good when it's run through modern computers!) and finding aesthetically-pleasing images that may not have gotten noticed otherwise. He can be found on Twitter as @jccwrt, and on Flickr.
The base image for this map is a mosaic of Mars Reconnaissance Orbiter Context Camera images that has been colorized with Mars Express HRSC images. During its 14.5 years on the Martian surface, Opportunity traveled 45.16 km from its landing site in Eagle Crater. The site of its last communication with Earth (and presumably its final resting place) at Perseverance Valley lies almost exactly 25 km as the crow flies from its starting point.