See all 5 routes on South Llano River
Texas | Texas Hill Country
South Llano River
South Llano River State Park to Flatrock Lane Crossing
Check current paddling conditions for this South Llano River route, including water level, recent gauge trend, weather, and route details.
Route location
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Need to know
Why this call
Safety
Route safety
CautionThis route has hazards or access considerations that require extra verification.
Safety details
TPWD says paddlers at South Llano River State Park must use the designated landing and portage around the damaged bridge area before reentering downstream.
- Below the portage, expect shallow riffles and occasional snags, especially when the gauge is near the conservative floor.
- Heavy rain can raise this spring-fed river quickly enough to turn a casual half-day float into a fast current check.
Conditions
Gauge history and hourly forecast
The top card is the quick read. This lower section keeps the longer gauge trend, gauge context, and hourly forecast together.
Gauge detail
Gauge history & hourly forecastDetailed view
Gauge note
Minimum 65 cfs · S Llano Rv at Flat Rock Ln at Junction, TX
Gauge context
Use the South Llano gauge at Flat Rock Lane near Junction. Treat 65 cfs as the conservative floor and expect a cleaner ride above roughly 100 cfs. At low water, the biggest issue is scraping through riffles and weaving around woody edges.
Gauge
Recent trend
Checking preferred range.
Checking trend.
Gauge source
--Checking timestampMN DNR provides the current paddling level here, but not chart-ready recent samples.
Weather
Hourly forecast
Checking weather.
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Next 8 hours
Short-route forecast
Checking the next several hours.
Route overview
Quick facts and what's next
Distance, difficulty, shuttle basics, and the near-term outlook before you commit to the drive.
Quick facts
Plan ahead
Upcoming outlook
These are early planning reads. Re-check live conditions before you commit to the drive.
Waiting on forecast.
Waiting on forecast.
Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
Put in at South Llano River State Park and float to Flatrock Lane for the upper split of the official paddling trail. This is a short spring-fed run with clear pools, easy riffles, and a required state-park bridge portage near the start.
Prepare this trip
Take the plan with you
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Put-in
South Llano River State Park paddling accessTPWD says the damaged state-park bridge apron is closed and that paddlers must exit at the designated location, portage around the bridge, and reenter downstream.
Take-out
Flatrock Lane CrossingUse the marked state-park launch and the named Flatrock take-out rather than improvised bank stops.
Plan this segment
Access caveats and watch for
Access caveats
- TPWD says the damaged state-park bridge apron is closed and that paddlers must exit at the designated location, portage around the bridge, and reenter downstream.
- Use the marked state-park launch and the named Flatrock take-out rather than improvised bank stops.
- Private shoreline begins quickly outside the park corridor, so keep rests brief and at the named public access points.
Watch for
- The required bridge portage at South Llano River State Park.
- Low-water scraping and minor route reading through shallow riffles when the gauge is near the conservative floor.
- Strainers, changing current after rain, and slippery rocks at either access.
Route gallery
See this route on the water
Photos help show what the access looks like and what the route actually feels like on the water.

Score & sources
Why this score
See the gauge, weather, and source notes behind today's call.
Why this scoreToday's evidence strength is checking
Evidence strength mostly comes down to three things: how direct the active gauge is, how clear the range is, and how fresh the data is.
- Checking evidence-strength notes.
- Checking evidence cautions.
Data behind the scoreGauge, thresholds, and timing
These are the live readings and threshold notes behind today's score.
| Gauge site | S Llano Rv at Flat Rock Ln at Junction, TX |
| Discharge | Checking |
| Gauge height | Checking |
| 24h trend | Checking |
| 24h change | Checking |
| Current band | Checking |
| Rain last 24h | Checking |
| Rain last 72h | Checking |
| Air temp | Checking |
| Water temp | Checking |
| Wind | Checking |
| Gusts | Checking |
| Rain timing | Checking |
| Ideal range | Needs paddler reports |
| Known low-water floor | 65 cfs |
| High threshold | Not calibrated yet |
| Evidence strength behind the range | Local route guidance |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | Texas Rivers Protection Association South Llano overview |
| Gauge source | Checking |
| Weather source | Checking |
| Rainfall source | Checking |
NotesWhat to know before you go
These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.
- Published flow guidance65 cfs minimum; 100-500 cfs broader ideal
Texas Rivers Protection Association summarizes the South Llano with a 65 cfs minimum and 100-500 cfs ideal band at the Junction gauge.
- Official route segmentState Park to Flatrock Lane, 4.7 mi
TPWD lists South Llano River State Park to Flatrock Lane Crossing as a 4.7-mile alternate split of the South Llano Paddling Trail.
- Put-in accessSouth Llano River State Park, 30.4498, -99.8128
The TPWD paddling-trail page identifies the state-park trail access point, and the state-park page says the park has one designated place for paddlers to park and put in.
- Take-out accessFlatrock Lane Crossing, 30.4789, -99.7778
TPWD identifies Flatrock Lane Crossing as a named paddling-trail access point with published coordinates.
- Bridge portageMandatory state-park bridge portage
TPWD says paddlers must exit the river at the designated location prior to the bridge at South Llano River State Park and portage around the bridge before reentering downstream.
- Live-gauge supportUSGS 08149900 at 51.6 cfs / 2.14 ft
USGS Water Services returned same-day values for S Llano River at Flat Rock Lane at Junction, TX at 2026-07-11 09:55 CDT during this run.
Verify it yourselfCheck the source links
Use these links to double-check the gauge, route details, and access notes before you head out.
Paddler reports
Recent notes from paddlers
A few quick notes from people who were on this route recently.
Reports
Paddler reports
See recent photos and notes from people on the route.
More level reports needed
Only a low-water floor is known.
We can tell when this route is likely too low, but we do not yet have enough reports to define a best range. If you paddled it recently, send a condition report with how the level felt.
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Quick answers
South Llano River paddling FAQ
What water level is good for paddling South Llano River?
Paddle Today watches S Llano Rv at Flat Rock Ln at Junction, TX and uses 65 cfs as the conservative low-water floor for this route. The ideal range still needs more paddler reports.
Where does this South Llano River route start and end?
This route starts at South Llano River State Park paddling access and ends at Flatrock Lane Crossing, about About 4.7 mi on the water.
Is this South Llano River route good for beginners?
This is listed as an easy route, but conditions still matter. Check today's score, water level, weather, and access notes before you go.
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Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.
