Watershed Summary + more
Current Conditions + more
J-17 Well 678.1 msl (+0.0)
Guadalupe @ Spring Branch 280 cfs (-31)
Canyon Reservoir 909.25 msl (-0.01)
Guadalupe @ Sattler 320 cfs (-3)
Comal Springs 402 cfs (+5)
San Marcos Springs 241 cfs (-1)
Guadalupe @ Gonzales 1780 cfs (-340)
Guadalupe @ Victoria 2150 cfs (-1620)
Coleto Reservoir 96.35 msl (-0.04)
Guadalupe @ Tivoli 2380 cfs (+320)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 14.88%
Comal Springs 18.70%
San Marcos Springs 11.21%
Natural Base Flow 55.21%
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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