Spring Fed · Mixed · Eastern Sierra, US

Hot Creek

View from Brees Lookout over Hot Creek valley with Laurel Mountain behind, Eastern Sierra.

Hot Creek is a glassy spring-fed meadow stream below Mammoth, a Wild Trout water and one of the most technical pieces of dry-fly fishing in California — a place that will make a good caster feel ordinary.

Tomorrow · Not the day for it
Forecast · Tomorrow
Not the day for it
Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
90% projected
Conditions on the water · Tomorrow
Estimate
Level
Dry recently
No gauge reading
Water temp25.5°C
ClarityClear
Weather11°C
WindN 4 km/h
Pressure1020 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 Brown Trout
Welfare risk
26°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown 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 25.1°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Likely species
Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 as a supporter.

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Evidence
Records-basedModerate confidence

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

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Western Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Pale Morning DunHatch
2
3
3
2
TricoHatch
2
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Year-round catch-and-release, barbless artificial only on the interpretive Wild Trout reach — verify exact boundaries and current rules against CDFW
  • THERMAL CAUTION: geothermal influence makes the temperature picture non-obvious; be conservative on summer welfare
  • Water temperature here should be treated as estimated unless a live sensor is confirmed.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 4
Probably above the Brown Trout safety line — these are likely cooler, but carry a thermometer.
Gallery · 2
  1. View from Brees Lookout over Hot Creek valley with Laurel Mountain behind, Eastern Sierra.
    Hot Creek and Laurel Mountain
  2. Terrain map of the venue
    Terrain map
About this water

Hot Creek is a glassy spring-fed meadow stream below Mammoth, a Wild Trout water and one of the most technical pieces of dry-fly fishing in California — a place that will make a good caster feel ordinary. The wild browns and rainbows sit in clear, weed-lined runs and have a PhD in tippet diameter. It runs cold and constant from its springs, but there's geothermal water in the system too, so the thermal picture isn't the simple cold-tailwater story you'd assume — fish it in the cool of the morning in high summer and let it rest in the heat. Strictly catch-and-release on the famous interpretive reach. Small flies, long fine leaders, downstream presentations, and a sense of humour.

Under the surface

Hot Creek is a small spring creek that punches improbably above its weight — a short, clear, weed-rich meander through a high sage meadow under the Eastern Sierra near Mammoth, fed by cold springs and warmed, downstream, by the geothermal water that gives it its name and eventually boils up in a gorge of hot springs. The public interpretive section is the famous bit: a couple of hundred yards of glassy, gin-clear spring creek packed with wild browns and rainbows that see every angler who pulls off the highway and behave accordingly. The flow is constant off the volcanic aquifer; the bed is silt, gravel and rooted weed; the surface gives nothing away. Wading is not allowed on the interpretive water — you fish from the bank, on your knees, with the lightest tippet and the smallest flies. It is tiny, crowded, and one of the best technical dry-fly tests in the West.

Wading: No wading; bank only, total exposure

  • Mixed
  • Unconfined
  • Spring creek
  • Meandering
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature0 × 28%0.0
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Limiting factor: Water temperature (25.1°C) is outside Brown Trout's preferred range (10–16°C)= 52
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 10–16 °C ideal band — would lift the score and ease welfare.
Directions
Seasons & zones
  • Trout 1 January → 31 December
Related guides
Booking & contacts