Spring Creek Tailwater Mix · Volcanic · Northern California, US

Battle Creek

Battle Creek flowing through a rocky, tree-lined gorge near Manton, California, viewed from Wildcat Bridge.
Tomorrow · Slow going — pick your moments
Hopper
Forecast · Tomorrow
Slow going — pick your moments
Slow going — pick your moments and do not force it.
80% projected
Today's fly
Hopper
Hopper
Conditions on the water · Tomorrow
Estimate
Level
Dry recently
No gauge reading
Water temp18.5°C
ClarityClearing
Weather25°C
WindN 8 km/h
Pressure1017 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for Rainbow Trout
Warm — slow
19°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Water at 18.7°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Likely species
Mayflies
Caddisflies
terrestrials
Hatch timeline · tomorrowPeak at 12pm

12pm(now) — Grasshopper

Stage: Terrestrials on topApproach: Dry flyActivity: 95%
Also:Reed Smut52%Trico44%
Peak emergence windowWeather boost5 food groups active

Peak activity at 12pm — Grasshopper (Grasshopper, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 with Pro.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Brown DunHatch
2
3
3
3
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Rainbow Trout fly box
CO
Comet (orange)
4-8 · Comet
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Treat as conservation-first and verify current CDFW rules before any angling recommendation.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 1
Water here around 19°C — probably warm enough to stress Rainbow Trout . These are likely cooler.
Lower Sacramento River
29 km
~12°C
Rainbow trout
Gallery · 2
  1. Battle Creek flowing through a rocky, tree-lined gorge near Manton, California, viewed from Wildcat Bridge.
    Winter-run juvenile release into Battle Creek
  2. Terrain map of the venue
    Terrain map
Conservation note

Important recovery context for Central Valley Chinook and steelhead. No listed-salmonid catch score; no targeting language.

Water quality · US Clean Water Act
  • Aquatic life: Supporting
What this classification means

EPA ATTAINS assessment unit 'Battle Creek (Tehama County)' (CAR5081000020200421044068), 2024 Integrated Report. Aquatic Life use: Fully Supporting. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.

Status is for the Clean Water Act assessment unit covering this reach.

EPA ATTAINS (Clean Water Act) · CAR5081000020200421044068

The full read · show the working · for Rainbow Trout · confidence 80%
How the 25 is built — score × weight = contribution
Temperature69 × 28%19.3
Flow60 × 22%13.2
Clarity85 × 18%15.3
Feeding Time50 × 13%6.5
Pressure75 × 7%5.3
Insect activity52 × 12%6.2
Conditions total= 66
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–18 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Verify → Verify
Related guides
Euro Nymphingsubsurface methods
Booking & contacts