9Originally just a thoroughfare connecting St. Petersburg with Pass-a-Grille, the area on St. Petersburg Beach immediately south of the Corey Causeway would, in time, become a destination of its own. As Florida recovered from the Great Depression, real estate developers the Upham Company carefully turned a swampy and mosquito-infested property into a successful commercial district, eventually to be called St. Pete Beach's Downtown. Over the years, many businesses would come and go, but several of the earliest continue into the 21st century, and the offices of the largest municipality on Pinellas County's barrier islands are now located there.