Fort Worth is located in North Texas, and has a generally humid subtropical climate. It is part of the Cross Timbers region; this region is a boundary between the more heavily forested eastern parts and the rolling hills and prairies of the central part. Specifically, the city is part of the ecoregion within the Cross Timbers. According to the United States Census Bureau, the city has a total area of , of which are land and are covered by water. It is a principal city in the Dallas–Fort Worth metroplex, and the second largest.