Mountain Man (Mountain Man, #1)

Augustus Berry lives a day-to-day existence comprised of waking up, getting drunk, and preparing for the inevitable day when “they” will come up the side of his mountain and penetrate his fortress. Living on the outskirts of a city and scavenging for whatever supplies remain after civilization died two years ago, Gus knows that every time he goes down into undead suburbia could be his last.

First book of a series.