West Fork San Gabriel RiverFishing report · river in California
This fork of the San Gabriel River provides a unique opportunity for urban anglers to find solitude and wild trout. It's a small, intimate stream that rewards careful wading and precise casts with light tackle. Fly fishing is catch-and-release, often with barbless hooks.
What's working on West Fork San Gabriel River
- 01Clear skies and mild temperatures create ideal fall conditions.
- 02Primary hatches include Blue-Winged Olives and October Caddis, with consistent midge activity.
- 03Recommended flies: Blue-Winged Olive Comparadun, Travis Hi-Vis BWO Para Emerger, October Caddis (Dry), Zebra Midge, Midge Larva, Olive Woolly Bugger, Schroeder’s Parachute Hopper.
- 04Focus on deeper pools, shaded runs, and areas with structure like undercut banks.
What to tie on
Picked from reports, hatches and the season. Tap a fly for the recipe and where else it works.
Rouse's J-Dub Sow Bug
On warmer fall days, terrestrials like grasshoppers can still be dislodged from streamside vegetation, providing a substantial meal for opportunistic trout.
Blue-Winged Olive Comparadun
Matches the anticipated fall Blue-Winged Olive hatches, appealing to selective trout feeding on adults on the surface.
Buy at AmazonTravis Hi-Vis BWO Para Emerger
Crucial for targeting trout keying into vulnerable BWO emergers trapped in the surface film during fall hatches.
October Caddis (Dry)
Fall is known for the robust October Caddis hatch, making this a prime pattern for enticing larger trout to the surface in the late afternoon.
Buy at AmazonMidge Larva
Midges are a consistent, year-round food source, becoming particularly important as water temperatures drop in fall, appealing to subsurface feeding trout.
Buy at AmazonZebra Midge
A highly effective subsurface pattern for imitating abundant midge pupae, which are a staple diet for trout in the cooler fall conditions.
Buy at AmazonMicro Egg
Egg patterns are effective in the fall, mimicking eggs from spawning fish, which can be a calorie-rich food source for trout.
Buy at AmazonWoolly Bugger
This versatile streamer imitates leeches and baitfish, provoking aggressive strikes from larger, predatory trout in the West Fork San Gabriel River as they become more active in cooler fall water.
Buy at AmazonWhere to fish and who to ask
Bridge to Nowhere Trailhead
Provides access to a popular and scenic stretch of river.
Cogswell Dam (below)
The tailwater section can hold good fish, requiring some hiking.
San Gabriel Canyon Road (various turnouts)
Numerous spots to pull off and access the river along the road.
Fly shops within 40 miles
His and Her Fly Fishing Shop
Fisherman's Spot
Get West Fork San Gabriel River reports by email
Every Thursday: conditions, hatches and what's working across California, with West Fork San Gabriel River at the top.
California season by season
What changes on the water through the year, with the flies for each season.
Quick answers
Common questions about West Fork San Gabriel River.
What flies work best on West Fork San Gabriel River?
Our top scored fly patterns for West Fork San Gabriel River right now are Rouse's J-Dub Sow Bug (80% confidence), Blue-Winged Olive Comparadun (80% confidence), Travis Hi-Vis BWO Para Emerger (80% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.
What fish species are in West Fork San Gabriel River?
West Fork San Gabriel River holds Steelhead. See the species links on this page for fly recommendations and seasonal behavior for each.
Is West Fork San Gabriel River fishing well right now?
We publish a fresh bite report for West Fork San Gabriel River each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.