Watershed Summary + more
Current Conditions + more
J-17 Well 678.1 msl (+0.0)
Guadalupe @ Spring Branch 325 cfs (-73)
Canyon Reservoir 909.26 msl (+0.02)
Guadalupe @ Sattler 323 cfs (+0)
Comal Springs 406 cfs (+4)
San Marcos Springs 244 cfs (-3)
Guadalupe @ Gonzales 2080 cfs (-460)
Guadalupe @ Victoria 4130 cfs (+2610)
Coleto Reservoir 96.41 msl (-0.04)
Guadalupe @ Tivoli 2030 cfs (+180)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 7.82%
Comal Springs 9.83%
San Marcos Springs 5.91%
Natural Base Flow 76.44%
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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