Hatch predictions
Today's headline hatch shown — see all 7 active hatches hour by hour as a supporter.
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Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
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Hatch predictions
Top prey shown — see all 2 as a supporter.
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Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A famous Central Valley spring-run Chinook recovery stream — worth knowing about for where salmon recovery is happening and why water temperature matters, not as somewhere to fish for salmon. Volcanic bedrock underlies this river. These are steelhead and salmon waters managed by CDFW under strict, frequently-changing seasonal rules — salmon retention is often prohibited and catch-and-release is widely required; check current CDFW regulations before fishing.
Central Valley spring-run Chinook recovery context. No catch score, no targeting language, and strong temperature/conservation messaging.
Fish consumption: Consumption advisory (Mercury) — fish for sport, not the table.
EPA ATTAINS assessment unit 'Butte Creek (Butte County)' (CAR5204000020020610131525), 2024 Integrated Report. Aquatic Life use: Fully Supporting. Listed impairment causes: Mercury, Toxic Organics. 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) · CAR5204000020020610131525
A famous Central Valley spring-run Chinook recovery stream — worth knowing about for where salmon recovery is happening and why water temperature matters, not as somewhere to fish for salmon.
Hatch predictions
Today's headline hatch shown — see all 7 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top prey shown — see all 2 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
A famous Central Valley spring-run Chinook recovery stream — worth knowing about for where salmon recovery is happening and why water temperature matters, not as somewhere to fish for salmon. Volcanic bedrock underlies this river. These are steelhead and salmon waters managed by CDFW under strict, frequently-changing seasonal rules — salmon retention is often prohibited and catch-and-release is widely required; check current CDFW regulations before fishing.
Central Valley spring-run Chinook recovery context. No catch score, no targeting language, and strong temperature/conservation messaging.
Fish consumption: Consumption advisory (Mercury) — fish for sport, not the table.
EPA ATTAINS assessment unit 'Butte Creek (Butte County)' (CAR5204000020020610131525), 2024 Integrated Report. Aquatic Life use: Fully Supporting. Listed impairment causes: Mercury, Toxic Organics. 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) · CAR5204000020020610131525
Mayflies
Chironomids
Gammarids
