The Walker Hotel is the place that Squad 53 fell back to after Camp Haven was destroyed. It was an abandoned hotel that seemed mostly in tact though there was an abundance of trash scattered around as well as spots of dead flies on the floor. Across the street from it was an abandoned and run down restaurant. The Squad kept mostly to the lower floors of this hotel but they knew that they couldn't stay there as there was not a lot of supplies as well as shelter to be had to sustain them through the coming winter. It was Ringer who decided to call it that in a sort of a playful memento to Evan Walker for helping them to destroy the base.
It was destroyed when Poundcake used an explosive to try and stop Grace from getting to the others when she attacked them.