Trinity River Geology of the Dallas–Fort Worth Metroplex

the dfw metroplex had additional, if subtle, geologic advantage. trinity not navigation boats great drinking. trinity river water better either of larger rivers north , south, red river , brazos river. larger rivers longer , flow on salt-bearing permian sediments, west of trinity headwaters. trinity consequently sweeter water either larger brazos or red rivers. life better , easier near sweet water, , simple fact helped dfw prosper relative settlements on larger rivers north , south. because trinity not suitable navigation, metroplex not have grown large city until railroad arrived, happened in metroplex s history, in 1870s. (see: history of dallas, texas (1874-1929)) dallas-fort worth metroplex modern metropolitan area, because not have grown large until mechanical transportation systems made trinity disadvantage in river navigation insignificant.