USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Bexar County, Texas

Hydrologic Unit Code 12100301

Latitude 29°24'34", Longitude 98°29'41" NAD27

Drainage area 41.8 square miles

Contributing drainage area 41.8 square miles

Gage datum 603.08 feet above NAVD88

**Period of record**
Begin Date	End Date	Count
1987-08-13	2025-05-29	165

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://nwis.waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Texas Water Data Support Team
Page Last Modified: 2025-07-17 10:46:09 EDT
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