Castle Rock's corporate headquarters are based in Portland, Oregon. The office hours are between 8:30am and 5:30pm Pacific Standard Time.

Named after Portland, Maine as a result of a coin toss, the city was founded in 1845. Today Portland is a thriving metropolis with a population of over half a million, dominated by service industries. The city's picturesque surrounding rivers and forests have become a drawing card for tourists rather than a resource for export.