That's not on a road - that's anywhere in the lower 48.
I always assume nearby a McDonald's would likely be a gas station.
Growing up in Australia and now living in the Yukon this blows my mind. I just drove 35,000 miles from Morocco to Cape Town in South Africa, and there were zero McDonalds that entire time. [1]
The Lower 48 is extremely densely developed!
[0] http://www.datapointed.net/2009/09/distance-to-nearest-mcdon... and http://www.datapointed.net/2010/09/distance-to-nearest-mcdon...