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Executive Angler

Hatch-chart pattern list

Best Flies for North Platte River (Northgate Canyon) (Colorado)

The North Platte River (Northgate Canyon) in Colorado fishes as both a wade and a float. It is a freestone fishery for Brown Trout and Rainbow Trout, with the most reliable window in May, June, July. The patterns below are matched to the hatch chart we publish for this water. They are not a live report of what other anglers caught this week.

This is not a live report of other anglers' catches. Presence and flow live on the North Platte River (Northgate Canyon) river page and the Colorado destination guide.

What's hatching now

Month, insect, size, and pattern from the North Platte River (Northgate Canyon) hatch chart. August is highlighted when that month exists in the chart. We do not invent a hatch that is not on the chart.

MonthInsectSizePattern
JanuaryMidge (Chironomidae)#18-24Zebra Midge
FebruaryMidge (Chironomidae)#18-24Zebra Midge
MarchMidge (Chironomidae)#18-24Zebra Midge
Blue-Winged Olive#16-24Parachute BWO, Foam Wing Parachute BWO
AprilBlue-Winged Olive#16-24Parachute BWO, Foam Wing Parachute BWO
Midge (Chironomidae)#18-24Zebra Midge
MaySalmonfly#6-14Rubberleg Stimulator, Beadhead 20 Incher
Caddis (Trichoptera)#10-20CDC Elk Hair Caddis, CDC Caddis Emerger
Blue-Winged Olive#16-24Parachute BWO
JuneSalmonfly#6-14Rubberleg Stimulator, Beadhead 20 Incher
Golden Stone#8-14Beadhead 20 Incher, Rubberleg Stimulator
Green Drake#8-14Green Drake Parachute
Pale Morning Dun#14-20Parachute Pale Morning Dun
Caddis (Trichoptera)#10-20CDC Elk Hair Caddis
JulySalmonfly#6-14Rubberleg Stimulator
Golden Stone#8-14Beadhead 20 Incher
Green Drake#8-14Green Drake Parachute
Pale Morning Dun#14-20Parachute Pale Morning Dun
Trico Mayfly#18-26Purple Haze, Trico Spinner
Caddis (Trichoptera)#10-20CDC Elk Hair Caddis
AugustGreen Drake#8-14Green Drake Parachute
Pale Morning Dun#14-20Parachute Pale Morning Dun
Trico Mayfly#18-26Purple Haze, Trico Spinner
Caddis (Trichoptera)#10-20CDC Elk Hair Caddis
Hoppers, Beetles, Flying Ants (terrestrial)#8-16Dave's Hopper, Foam Beetle
SeptemberPale Morning Dun#14-20Parachute Pale Morning Dun
Trico Mayfly#18-26Purple Haze, Trico Spinner
Mahogany Dun#10-16Mahogany Dun Parachute
Blue-Winged Olive#16-24Parachute BWO, Hi-Vis Parachute BWO
Caddis (Trichoptera)#10-20CDC Elk Hair Caddis
OctoberMahogany Dun#10-16Mahogany Dun Parachute
Blue-Winged Olive#16-24Parachute BWO, Hi-Vis Parachute BWO
Caddis (Trichoptera)#10-20CDC Elk Hair Caddis
NovemberBlue-Winged Olive#16-24Parachute BWO
Midge (Chironomidae)#18-24Zebra Midge
DecemberMidge (Chironomidae)#18-24Zebra Midge

Nymphs

Subsurface patterns matched to this river's chart and catalog. Fish them at the size the chart lists, not the size that looks good in the bin.

Dries

Dries and terrestrials for the North Platte River (Northgate Canyon). If the chart says a size 18 PMD, do not start with a 12.

Streamers

Streamers and wets for stained water, banks, and low light. This is not a claim that streamers are "on" today.

No catalog patterns in this group yet. Use the hatch chart and the river guide.

Setup

4X and 5X cover most nymphing. 4X on dries until the fish get picky, then 5X. A 3.0–3.8mm tungsten on the point and a lighter dropper is a default until you see the water. Tight-line the near bank and the heads of pockets. Use an indicator only when you need to search water you cannot euro.

FAQ

What flies work on the North Platte River (Northgate Canyon)?
Start with BWO Parachute and BWO Loop Wing Emerger, then match size to the hatch chart for the month you are standing in. The North Platte River (Northgate Canyon) does not need a 40-pattern box. It needs the right size on the insect that is actually in the drift.
When is the best time to fly fish the North Platte River (Northgate Canyon)?
The editorial window we list is May, June, July, August, September. That is a planning month range, not a guarantee. Shoulder months can fish well if flows and water temperature cooperate.
Do I need a guide on the North Platte River (Northgate Canyon)?
Colorado has walk-up wade water and, on some sections, float water. A guide is worth it for a first float or a technical tailwater. A hatch chart and a gauge are enough for a first wade if you already nymph. We list local guides and shops on this page when we have them.
Where can I see live flow for the North Platte River (Northgate Canyon)?
Open the North Platte River (Northgate Canyon) river page for the USGS gauge, access notes, and the same hatch chart this fly list is built from. We do not publish other people's spots or fish counts.
Is this a report of what's working now on the North Platte River (Northgate Canyon)?
No. Executive Angler does not publish other anglers' catches, GPS, or a crowdsourced hot fly. This page is hatch-chart patterns plus catalog flies. Presence on the river page is gauge and weather only.

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