- Free fishing
- Fly only
- Little Black Caddis (East)Most likelyLower confidenceNearest relative#16–18–20 · Adult
- Green Caddis / Rock WormAlso possibleLower confidence#14 · Adult
- Tan Caddis / Spotted SedgeAlso possibleLower confidenceNearest relative#14–16 · Adult
- October CaddisAlso possibleLower confidenceNearest relative#6–8–10 · Adult
12pm(now) — Reed Smut
Peak activity at 11am — Reed Smut (Reed Smut, Peak emergence window)
Hatch predictions
Top nymph shown — see all 3 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 with Pro.
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.
- CDFW low-flow threshold is 150 cfs at Van Duzen River near Bridgeville; check current open/closed status.

Van Duzen River Terrain map
Wild steelhead and salmonid recovery context. Conservation-first; no catch score for listed salmonids.
Why this score · for Steelhead
- Temperature7828% weight
- Flow8022% weight
- Clarity9518% weight
- Feeding Time4013% weight
- Pressure757% weight
- Insect activity6012% weight
- Trout 1 September → 30 April
Van Duzen River

- Little Black Caddis (East)Most likelyLower confidenceNearest relative#16–18–20 · Adult
- Green Caddis / Rock WormAlso possibleLower confidence#14 · Adult
- Tan Caddis / Spotted SedgeAlso possibleLower confidenceNearest relative#14–16 · Adult
- October CaddisAlso possibleLower confidenceNearest relative#6–8–10 · Adult
12pm(now) — Reed Smut
Peak activity at 11am — Reed Smut (Reed Smut, Peak emergence window)
Hatch predictions
Top nymph shown — see all 3 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 3 with Pro.
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.
- CDFW low-flow threshold is 150 cfs at Van Duzen River near Bridgeville; check current open/closed status.

Van Duzen River Terrain map
Wild steelhead and salmonid recovery context. Conservation-first; no catch score for listed salmonids.
Why this score · for Steelhead
- Temperature7828% weight
- Flow8022% weight
- Clarity9518% weight
- Feeding Time4013% weight
- Pressure757% weight
- Insect activity6012% weight
- Trout 1 September → 30 April