border. San Antonio has the most significant African American population in all of South Texas. Economy Rice An important event in the development of South Texas and the Texas Gulf Coast rice industry was the introduction of seed imported from Japan in 1904. The Houston Chamber of Commerce and the Southern Pacific Railroad invited Japanese farmers to Texas to help area farms in the production of rice. The seed the Japanese farmers brought with them was a gift from the Japanese emperor. The production of Japanese rice began at Webster in Harris County. The Gulf Coast rice industry is credited to the Saibara family. Transportation Air San Antonio International Airport Corpus Christi International Airport Laredo International Airport Valley International Airport Victoria Regional Airport McAllen Miller International Airport Brownsville/South Padre Island International Airport Alice International Airport South Texas International Airport at Edinburg Aransas County Airport Kleberg County Airport Duval-Freer Airport Mustang Beach Airport San José Island Airport Passenger rail San Antonio Amtrak station, serving two Amtrak lines; the Sunset Limited and the Texas Eagle; and Amtrak Thruway Motorcoach route serving Harlingen, Brownsville, and McAllen, Texas. Major highways Interstate I-2 I-10 I-35 I-37 I-69C I-69E I-69W I-169 I-410 US Routes US 59 US 77 US 83 US 87 US 90 US 181 US 281 Texas State Highways TX 4 TX 16 TX 44 TX 107 TX 141 TX 151 TX 255 TX 285 TX 286 TX 336 TX 358 TX 359 TX 361 TX 495 International bridges Laredo Gateway to the Americas International Bridge Juárez–Lincoln International Bridge Texas Mexican Railway International Bridge World Trade International Bridge Laredo–Colombia Solidarity International Bridge Eagle Pass Eagle Pass–Piedras Negras International Bridge Camino Real International Bridge Union Pacific International Railroad Bridge Brownsville Brownsville & Matamoros International Bridge Veterans International Bridge at Los Tomates Gateway International Bridge Los Indios Free Trade International Bridge Falcon Heights Lake Falcon Dam International Crossing HidalgoMcAllen McAllen–Hidalgo–Reynosa International Bridge Anzalduas International Bridge Pharr Pharr–Reynosa International Bridge Progreso Progreso–Nuevo Progreso International Bridge Rio Grande City Rio Grande City–Camargo International Bridge Roma Roma–Ciudad Miguel Alemán International Bridge Tourism San Antonio San Antonio Missions National Historical Park The Alamo Tobin Center for the Performing Arts Six Flags Fiesta Texas San Antonio River Walk San Antonio Zoo SeaWorld San Antonio San Antonio Museum of Art San Antonio Stock Show & Rodeo Corpus Christi Mirador de la Flor (Selena Memorial Statue) Texas State Aquarium USS Lexington Museum Ship