Troutline

Upper Sacramento River

California·Northern California·41.05° N, 122.30° W

The Upper Sac is where high-sticking was born. This 40-mile freestone canyon from near Mount Eddy down through Dunsmuir to Shasta Lake is the original classroom for the short-line nymphing technique -- weighted flies on a tight line, probing the seams between boulders in pocket water, feeling for the subtle tick of a take. The wild rainbows average 10-14 inches, they're strong and colorful from living in fast water, and there are a lot of them. It's not a trophy fishery. It's a place to catch fish all day using the most engaging technique in fly fishing.

The river's character is classic mountain freestone: cold, clear water tumbling over boulders and through riffles, runs, and emerald pools, framed by steep canyon walls of pine, fir, and cedar. Flows between 500 and 1,200 CFS provide ideal wading conditions. The stonefly hatches in May and June are the highlight -- salmonflies and Golden Stones bring fish to the surface on big dries, and the hatch moves upstream over several weeks. Summer caddis and evening dry fly fishing carry through September, and October Caddis and fall BWOs extend things into November. The river suffered a catastrophic fish kill in 1991 when a Southern Pacific tank car spilled metam sodium at the Cantara Loop, but the recovery has been remarkable -- today's wild trout population is healthy and self-sustaining.

I-5 and the railroad tracks parallel the river, making access easy from dozens of pullouts along the Dunsmuir corridor. That ease of access means weekend pressure, especially during the stonefly hatch. Dunsmuir is a small railroad town with the legendary Ted Fay Fly Shop, good food, and affordable lodging. Redding is an hour south with full services. The volcanic rock is slippery -- felt soles or studs are essential. Watch for the active freight trains when using railroad access points. Open year-round under general regulations with a 5-fish daily limit, though most anglers release everything.

Species

SpeciesAbundanceBest SeasonSizeNotes
Rainbow Trout (wild)AbundantApr-Oct8-16"Dominant species; strong, colorful fish adapted to fast water.
Brown TroutUncommonSep-Nov10-18"Less common; found in deeper pools and near Shasta Lake.
Ideal wading flow5001,200 CFS
Blow-out>3,000 CFS
Ideal water temp4858°F

May-June for stonefly hatches at peak. July-September for summer caddis and evening dry fly. October-November for October Caddis, fall BWOs, and fall colors.

Sections

4 sections on this river

Box Canyon to Cantara

WadeRainbow Trout

High-gradient headwaters from below Box Canyon Dam through tight canyon to the Cantara Loop area. Small pocket water with plunge pools and cascades under heavy forest canopy. Site of the 1991 Cantara metam sodium spill — the river's remarkable recovery is a conservation success story. Limited road access; Castle Crags views.

Best for: Solitude and small wild rainbow trout. Short-line nymphing. Attractor dry flies in plunge pools. Headwater fishing above the main corridor.

Dunsmuir

WadeSalmon

The heart of the Upper Sac through the historic railroad town of Dunsmuir. Classic pocket water and riffles with moderate gradient. Railroad corridor and town streets provide walk-in access. Dunsmuir City Park (Tauhindauli Park) and the I-5 Pool are popular landmarks. Ted Fay Fly Shop — the local institution — is here. The birthplace of high-sticking / Euro-nymphing.

Best for: High-sticking and Euro nymphing. Dry fly during salmonfly and golden stonefly hatches (Apr-Jun). Walk-in access from town. Year-round fishing. The most popular section.

Castle Crags

Wade

River widens below Dunsmuir with a mix of pocket water, riffles, and deeper pools. Castle Crags State Park provides access and dramatic granite spire scenery. Soda Creek area. Good year-round access from I-5 (exit 724, $6 day use).

Best for: Varied techniques in mixed water. Families with state park amenities. Nymphing and dry fly. Good beginner water with scenery.

Sweetbriar to Lakehead

WadeBrown Trout

Lower gradient river widening as it approaches Shasta Lake. Larger pools and deeper runs with warmer water in summer. Sweetbriar exit (723 off I-5), Pollard Flat, and Gibson area. Less fishing pressure than the Dunsmuir corridor. Browns and larger fish from Shasta Lake influence.

Best for: Larger fish potential from Shasta Lake influence. Streamers in deep pools. Nymphing year-round. Less pressured alternative to Dunsmuir.

Regulations

Current fishing rules and restrictions

Open year-round on the main stem from Box Canyon Dam to Shasta Lake. General regulations apply with 5 trout daily limit.

  • Open year-round
  • General regulations: 5 trout daily limit
  • No special method restrictions on most sections (bait, lures, and flies permitted)

Active freight railroad parallels the river -- be careful when using railroad access. Slippery volcanic rock requires felt-soled or studded boots.

Source: California DFW Freshwater Sport Fishing Regulations. Regulations change annually — verify before fishing.

Access & Logistics

Getting there, fly shops, and lodging

Getting There

Dunsmuir, CA

1 hr from Redding, 4 hrs from Sacramento, 4.5 hrs from San Francisco

Fly Shops

Camping & Lodging

Castle Crags State Park. Railroad Park Resort (Dunsmuir). Cave Springs Resort. Motels in Dunsmuir and Mt. Shasta.

Easy access from I-5. Railroad tracks provide foot access but be careful -- active freight line. The birthplace of high sticking / Euro-nymphing.

Fishing data compiled from state wildlife agency regulations, USGS water data, NOAA, and regional fly fishing resources. Regulations change annually — always verify current rules with your state fish & wildlife agency before fishing.

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