BIG SANDY CREEK (Clay County). Big Sandy Creek rises a mile northwest of Newport in southern Clay County (at 33°30' N, 98°04' W) and flows east for just under forty miles, through southwestern Montague County and central Wise County. The stream is impounded in southwestern Montague County to form Lake Amon G. Carter. Below the lake, six miles west of Sunset, the creek resumes its course, then passes within two miles of Alvord and joins the West Fork of the Trinity River five miles east of Bridgeport in central Wise County (at 33°12' N, 97°40' W). Big Sandy Creek flows over mostly flat land surfaced by clay and sandy loams that support water-tolerant hardwoods, conifers, and grasses. Throughout the county's history the area has been used as range and crop land.