Owyhee River, Lower

River Levels

GAGE
TIME
FT/CFS
℉/Turb
GRAPHS
7 am
1.76/187

 

Major Hatches for September

Importance by half-month
 Super    Major    Minor    Slight    None

Hatches are matched from Westfly's database of "standard" fly patterns.


Nymph

Size 16-20 Pheasant Tail, Hares Ear. Brown, brown-olive

Moderate runs, just below riffles: indicator, tight line, rising nymph

Emerger

Size 16-20 Sprout Midge, Film Critic, Hackle Stacker. Olive-brown body, gray wing

Flats, runs, backeddies: standard dry fly

Dun

Size 16-20 Sparkle Dun, Comparadun, Hairwing Dun. Olive-brown body, gray wing

Flats, runs, backeddies: standard dry fly

Spinner

Size 16-20 Diving Caddis, Soft Hackle. Dark body

runs, slowish riffles: surface swing

► Hatches will be sporadic, but nymphs are active and are taken by trout more regularly than the duns.

Nymph

Size 12-16 Hares Ear, Pheasant Tail. Dark brown, olive brown

Slow-moderate runs, bankwater: indicator, tight line, shallow nymph

Emerger

Size 12-16 Quigley Cripple, Film Critic, Hackle Stacker. Red-brown body, gray wing

Bankwater, backeddies, slow runs: standard dry fly

Dun

Size 12-16 Comparadun, Sparkle Dun, Hairwing Dun. Red-brown body, gray wing

Bankwater, backeddies, slow runs: standard dry fly

► DON'T cast blindly. In this quiet water you'll spook the fish. Instead, watch the rises and pick a single trout. Use a downstream presentation so the fly reaches the fish before the leader and line.

► Mahogany duns (genus Paraleptophelbia) create trout feeding activity in quiet bankwater because that's where the nymphs migrate before hatching. If you see trout languidly rising in slow water near the riverbank this month, you're probably witnessing a mahogany dun hatch.

► The upper part of the lower Owyhee is rich in mahogany duns, but the hatch seems to start later in the year. It is possible that you'll see a few this month, however, so you should be prepared.

Adult

Size 12-18 Goddard Caddis, X Caddis, Parachute Caddis, Elk Hair Caddis. Body: brown, green, dark gray; Wing: tan, brown

Egg-layer

Size 12-18 Diving Caddis, Soft Hackle. Body: brown; Wing: black

Riffles, current seams, backeddies below riffles: surface swing, shallow nymph, rising nymph

Pupa

Size 10-22 Chans Chironomid Pupa, Zebra Midge. Black, gray, olive, red, creams, browns

Adult

Size 10-22 Griffiths Gnat, Sprout Midge. Black, gray, olive, red, creams, browns

► Be prepared for midge hatches in the early morning hours and at dusk.

► When trout are midging, a Sprout Midge or Griffiths Gnat can work well, but a pupa pattern is always a good choice.

Adult

Size 4-10 Madam X, Daves Hopper, Morrish Hopper. Tan/yellow, olive/yellow, green

Bankwater with grass: standard dry fly

► Cast near grassy banks where there is a foot or more of water.

Adult

Size 2-8 Muddler, Woolly Bugger, Clouser Minnow, Possie Bugger. Browns, olives, silver, greens

Lakes; rivers over gravel and cobble, undercut banks: count-down-and-retrieve, slow retrieve, wind drift, deep swing

► You can pick up brown trout on leeches, baitfish imitations, and Woolly Buggers.

 

September Tips

Trout


► Don't be put off by the turbid water.

► Brown trout are found in the slackwater pools. Rainbow trout are in the faster water.

 

Other Months

What to expect in 

 

 

Other Rivers or Lakes

 

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Weather

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