Guadalupe River Texas A bluff at Guadalupe River State Park Country United States State Texas Region Texas Hill Country, Texas Coastal Bend Source Kerr County, Texas - elevation 676 m (2,218 ft) - coordinates 30 ° 05 ′ 17 '' N 99 ° 38 ′ 32 '' W ﻿ / ﻿ 30.08806 ° N 99.64222 ° W ﻿ / 30.08806; - 99.64222 Mouth San Antonio Bay, Gulf of Mexico - elevation 0 m (0 ft) - coordinates 28 ° 24 ′ 07 '' N 96 ° 46 ′ 57 '' W ﻿ / ﻿ 28.40194 ° N 96.78250 ° W ﻿ / 28.40194; - 96.78250 Coordinates: 28 ° 24 ′ 07 '' N 96 ° 46 ′ 57 '' W ﻿ / ﻿ 28.40194 ° N 96.78250 ° W ﻿ / 28.40194; - 96.78250 Length 370 km (230 mi) Basin 3,256 km (1,257 sq mi) Discharge - average 34 m / s (1,201 cu ft / s) Map of the Guadalupe River watershed Website: Handbook of Texas: Guadalupe River
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Kerr County, Texas