Brewster County (L-7), the largest county in Texas, is located in the Trans-Pecos region of West Texas, and is the site of Big Bend National Park,qv the largest park in the state. Brewster County is bordered by Presidio County to the west, Jeff Davis County to the northwest, Pecos County and Terrell County to the east, and the Rio Grande to the south. Alpine, the county seat and largest town, is 220 miles southeast of El Paso in northwestern Brewster County. The county's center lies about fifty miles southeast of Alpine at approximately 29 51' north latitude and 103 01' west longitude. U.S. Highway 90 and the Southern Pacific Railroad cross the northern part of the county; U. S. Highway 385 and State Highway 118 enter Brewster County from the northeast and northwest, respectively, and run south to Big Bend National Park; and the South Orient Railroad crosses the northwestern part of the county.