Understanding Frio River conditions
The spring-fed Frio River is known for exceptionally clear water, but recreation conditions vary widely with rainfall and season. The Concan gauge is a useful starting point for trip planning.
Popular activities
- Tubing around Concan
- Garner State Park visits
- Kayaking and swimming
- Hill Country camping
Is the river safe today?
A flow number alone cannot determine safety. Conditions that feel gentle at one access point may be hazardous downstream. Consider recent rain, water temperature, dam releases, debris and local closures. Never enter floodwater.
How often does the gauge update?
Most automated USGS gauges report repeatedly throughout the day, but update frequency and available measurements vary by station. A missing value does not mean the river is safe or unchanged.
Important: River Flow Today is an informational guide, not an official warning service. For flooding and emergencies, follow the National Weather Service and local authorities.