Llano River
Llano / Mason Co. · 100 mi · Class I–II
50.8CFS/ 0.67 ft
Below Optimal→Stable
Optimal: 100–1000 CFS · USGS #08150000
Length
Difficulty
Optimal
Avg Flow
Hist. Median
USGS Gauge
Texas Paddling Trail · Llano River Watershed Alliance
A spring-fed Hill Country gem flowing over pink granite bedrock through ranch country between Mason and Llano. The Llano River is one of the clearest rivers in Texas — spring-fed tributaries maintain swimmable water year-round. Tubing, kayaking, and bass fishing are the primary draws on this laid-back Hill Country waterway.
Trip sections
Junction to Mason — 40 mi, upper spring-fed, best water clarity
Mason to Castell — 30 mi, granite shoals and ranch country
Castell to Llano — 30 mi, wider river, gentle current
Outfitters
Llano River Adventures
Tubing, kayak, and canoe rentals on the Llano River
72-Hour Flow Forecast
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10-Year Flow Patterns
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Your Optimal Range
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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.