Live Conditions

San Marcos River

Texas42 miles4 Segments · 4 Rapids

Primary Flow

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cfs

Gauge Height

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Water Temp

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°F

Air Temp

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°F

Basin SWE

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in avg

Daylight

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sunrise

5-Day Trend

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River Profile

42 mi

Headwater

Mouth

0

10

20

30

40

Gauge(3)

Rapid(4)

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30-Day Flow History

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7-Day Outlook

Forecast

14-day on Pro

Your History · San Marcos River

Track your history

Gauge Stations

3 mainstem · live, 48h

USGS · Live

Quick Facts

Total Length: 42 miles
Gauge Stations: 3
Segments: 4
Rapids: 4

Elevation Profile

Elevation data not yet available for this river.

Fishing Intel

Current Hatches

No hatch calendar on file for this river yet.

Recommended Flies — Late September

No recommended flies on file for this river yet.

Notable Rapids

Rio Vista Whitewater Park

River mile 0.9

Old Mill

River mile 5.9

Broken Bone

River mile 7.0

Cottonseed

River mile 8.4

Season Timing

Fishing

Floating

Runoff

Regulations & Alerts

Spring Runoff Advisory

Water levels rising due to snowmelt. Exercise caution on all sections.

Browns Canyon National Monument

Special management area. No motorized boats permitted.

Catch & Release

Browns Canyon section: catch & release only for all trout species.

Bag & Possession Limits

Standard CO regulations: 4 trout per day, only 1 over 16".

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