TUOLUMNE R A MODESTO CA
TUOLUMNE RIVER CA USGS
TUOLUMNE R A MODESTO CA (11290000) is a real-time streamflow monitoring station on the TUOLUMNE RIVER in CA, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 11 fish species are associated with this station in public fish records.
- USGS site number
- 11290000
- Operated by
- U.S. Geological Survey
- State
- CA
- Coordinates
- 37.6272, -120.9844
Live conditions & history
Create a free account to see live flow, temperature, and recent history for this station
Riverbot reads this gauge every 15 minutes and emails you when the river hits the flow and temperature you fish. Sign up free to unlock the live chart and set your window.
7-day weather
Create a free account to see the 7-day weather forecast for this station
Wind, rain, and sky conditions for the week ahead at this gauge's coordinates — sign up free to plan your next trip around it.
Fishing regulations
CA state-wide default defaultDefault area rules for fish in the public records above. A grey row means the release has no canonical regulation match for that species.
-
American Shad Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- 25
- Gear
- May be taken only by angling
- Notes
- CCR Title 14 §5.65
Official rule · retrieved Aug 3, 2026
-
-
Black Bass (Largemouth and Smallmouth) Open · Harvest allowed within limits Open all year Details
-
Open all year
- Daily limit
- 5
- Notes
- CCR Title 14 §5.00(a)(2); Rivers, streams, canals and private ponds
Official rule · retrieved Aug 3, 2026
-
-
Brook Trout Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- 10
- Size rule
- <10"
- Notes
- CCR Title 14 §5.84; In addition to statewide trout limits (§5.84(d))
Official rule · retrieved Aug 3, 2026
-
-
Catfish and Bullheads Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- no limit
- Notes
- CCR Title 14 §5.15
Official rule · retrieved Aug 3, 2026
-
-
Lamprey Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- 5
- Gear
- May be taken only by hand, hook, spear, bow and arrow, or dip net
- Notes
- CCR Title 14 §5.40
Official rule · retrieved Aug 3, 2026
-
-
Landlocked Salmon Open · Harvest status unknown Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Notes
- CCR Title 14 §5.41
Official rule · retrieved Aug 3, 2026
-
-
Striped Bass Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- 2
- Size rule
- 18" minimum
- Notes
- CCR Title 14 §5.75
Official rule · retrieved Aug 3, 2026
-
-
Sunfish and Crappie Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- no limit
- Notes
- CCR Title 14 §5.82
Official rule · retrieved Aug 3, 2026
-
-
Tilapia Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- no limit
- Notes
- CCR Title 14 §5.83
Official rule · retrieved Aug 3, 2026
-
-
Trout (all species combined) Open · Harvest allowed within limits Apr 25 – Nov 15; Nov 16 – Dec 31; Jan 1 – Apr 24 Details
-
Apr 25 – Nov 15
- Daily limit
- 5
- Notes
- CCR Title 14 §5.85(a)(2); Streams, rivers and canals
Official rule · retrieved Aug 3, 2026
-
-
White Bass Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- no limit
- Gear
- Must be killed immediately by removing the head or cutting the gills
- Notes
- CCR Title 14 §5.90
Official rule · retrieved Aug 3, 2026
-
-
Yellow Perch Open · Harvest allowed within limits Jan 1 – Dec 31 Details
-
Jan 1 – Dec 31
- Daily limit
- no limit
- Notes
- CCR Title 14 §5.91
Official rule · retrieved Aug 3, 2026
-
-
Mountain Whitefish No season data Details
-
Period not confirmed
- Daily limit
- 5
- Notes
- CCR Title 14 §5.50; Open only when trout may be taken in that water
Official rule · retrieved Aug 3, 2026
-
-
Northern Pike No season data Details
-
Period not confirmed
- Gear
- Must be killed immediately; notify CDFW CalTip within 24 hours
- Notes
- CCR Title 14 §5.51; Mandatory kill — no release permitted
Official rule · retrieved Aug 3, 2026
-
Effective Jan 1, 2026 – Sep 14, 2027 · evaluated for 2026-09-10 in America/Los_Angeles
Regulations shown are for reference only and may not reflect in-season changes. Always verify current regulations with the California Freshwater Sport Fishing Regulations (CDFW) before fishing.
Fish recorded near this station
Sampled at this station's reachTuolumne R A Modesto CA has documented fish occurrence data from USGS Presence/Absence sampling at this monitoring station's reach (COMID 2823972). The dataset includes 11 species with recorded observations.
Species include: white catfish (Ameiurus catus), sacramento sucker (Catostomus occidentalis), prickly sculpin (Cottus asper), red shiner (Cyprinella lutrensis), green sunfish (Lepomis cyanellus), and 6 others.
- White Catfish Ameiurus catus
- Sacramento Sucker Catostomus occidentalis
- Prickly Sculpin Cottus asper
- Red Shiner Cyprinella lutrensis
- Green Sunfish Lepomis cyanellus
- Bluegill Lepomis macrochirus
- Redear Sunfish Lepomis microlophus
- Inland Silverside Menidia beryllina
- Smallmouth Bass Micropterus dolomieu
- Largemouth Bass Micropterus salmoides
- Sacramento Pikeminnow Ptychocheilus grandis
Where these records come from
- Evidence
- Sampled at this station's reach
- Fish were sampled directly on the river reach this gauge sits on, so these species were recorded at this spot rather than inferred.
- Records
- 11 species
- from 11 individual records
- Observed
- Jul 31, 1995 – Jul 31, 1995
- 11 dated records
Sources
🪰 Hatch Calendar
Create a free account to see what's hatching on this water
A month-by-month hatch calendar for this river — which insects are emerging now, hook sizes, and patterns to fish — collected from fly shops and guides who know it.