Frio River
Real / Uvalde Co. · 200 mi · Class I
21.1CFS/ 3.46 ft
Below Optimal
→Stable
Water temp: 70°F
Optimal: 50–300 CFS · USGS #08195000
⚡Flow data is live from USGS·Rapid classifications and CFS ranges need community verification·Know this river?
200 mi
Length
Class I
Difficulty
50–300 cfs
Optimal
120 cfs
Avg Flow
108 cfs
Hist. Median
#08195000
USGS Gauge
Garner State Park · Frio Canyon

The Frio (Spanish for 'cold') is a spring-fed Hill Country river renowned for its crystal-clear swimming holes and towering bald cypress trees. Garner State Park — one of the most popular state parks in Texas — anchors the best paddling stretch. The Frio runs cold even in August, drawing families from San Antonio and across South Texas.

Trip sections
Leakey to Garner State Park — 15 mi, best stretch, cypress-lined
Garner SP to Concan — 10 mi, family float, swimming holes
Concan to Uvalde — 30 mi, lower river, wider and warmer
72-Hour Flow Forecast
NOAA NWPS
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Data Quality

River conditions are community-verified. CFS ranges, difficulty ratings, and trip sections may not reflect every flow level or seasonal change. Always check current conditions, scout unfamiliar rapids, and paddle within your skill level. If you spot an error, use the Improve This River button at the top of the page — your local knowledge is what makes this atlas accurate.