Watershed Summary + more
Current Conditions + more
J-17 Well 685.4 msl (+0.6)
Guadalupe @ Spring Branch 515 cfs (-104)
Canyon Reservoir 909.90 msl (+0.09)
Guadalupe @ Sattler 612 cfs (+192)
Comal Springs 415 cfs (-251)
San Marcos Springs 227 cfs (+0)
Guadalupe @ Gonzales 6320 cfs (+3700)
Guadalupe @ Victoria 3710 cfs (+1330)
Coleto Reservoir 95.87 msl (+0.13)
Guadalupe @ Tivoli 2120 cfs (+280)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 16.50%
Comal Springs 11.19%
San Marcos Springs 6.12%
Natural Base Flow 66.20%
Percentages reflect sources. Losses and diversions not included.
Last 28 days at:

Preservation Matters

The Guadalupe-Blanco River Trust was founded in 2001 to conserve land in the Guadalupe River Watershed.

San Antonio Bay Foundation

Founded in 2008 to protect and preserve the Bay and Estuary at the end of the Guadalupe River Basin.

Canyon Lake Gorge

Within days following the Flood of 2002, the floodwaters carved a gorge into the landscape below the Canyon Lake Spillway.

Guadalupe River Foundation

Formed to establish a system for funding construction, operation and maintenance of environmental learning centers and programs.

© 1998 Guadalupe-Blanco River Authority

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