Three Rivers is located at the intersection of State Highway 72 and U.S. Highway 281, just south of the junction of the Atascosa and Frio Rivers and just north of the junction of the Frio and Nueces Rivers, hence the name THREE RIVERS, Texas. Three Rivers is nestled halfway between Corpus Christi and San Antonio. Making a short 70 mile drive south, you could be dipping your toes into the sparkling waters of the Gulf of Mexico. In the other direction, North, just 75 miles from Three Rivers you can visit the bustling city of San Antonio where you can experience the beauty of the famous San Antonio Riverwalk, take a historical tour of the Alamo, or trek a bit further north into the gorgeous, relaxing Hill Country.