McDonald's is pulling out of Iceland
This endeavor required information ... and the nice folks at AggData were kind enough to provide it to me: a complete list of all 13,000-or-so U.S. restaurants, in CSV format, geolocated for maximum convenience.
Between the tiny [South] Dakotan hamlets of Meadow and Glad Valley lies the McFarthest Spot: 107 miles distant from the nearest McDonald’s, as the crow flies, and 145 miles by car!