OLD RIVER (LIBERTY COUNTY)
OLD RIVER (Liberty County). Old River rises two miles south of Dayton in southwestern Liberty County (at 29°57' N, 94°53' W). Intermittent in its upper reaches, the river follows a southerly course for twenty-two miles, crossing into Chambers County, where it reaches its mouth on the Trinity River, three miles northwest of Anahuac (at 29°48' N, 94°44' W). The stream flows through a marshy, poorly drained area, with numerous prehistoric sites in its lower stages. It has also been deemed a critical habitat for several species of the fish and waterfowl indigenous to the upper Texas Gulf Coast.