*Please Note: All dates are subject to seasonal, as well as environmental fluctuations, and changes. Use this as a general guideline.
Bow River
Dates |
Hatches |
Size |
Imitations (Patterns) |
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April 1 - May 15
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Blue winged Olive (BWO) | 18 | Blue Winged Olive, CDC Biot BWO, Adams, BWO nymph |
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May 15 - June 15
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March Brown | 14-16 | March Brown, Adams |
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May 20 - August 30
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Caddis | 10-18 | Elk Hair Caddis, Parachute Caddis, Slow Water Caddis, Flashback Caddis Nymph |
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June 15 - July 30
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Pale Morning Dun (PMD) | 14-16 | Pale Morning Dun, Parachute PMD, CDC PMD, Light Cahill |
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June 15 - August 15
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Golden Stonefly | 6-12 | Yellow and Orange Stimulators, Kauffman's Stone nymph, Brook's Stonefly nymph |
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July 15 - August 15
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Western Green Drake | 8-12 | Green Drake, Green Paradrake, Thorax |
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July 15 - September 15
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Grasshopper | 4-12 | Dave's or Whitlock's Hopper, Club Sandwich, Triple Decker, |
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July 15-October 1
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Ants (Black & Red) | 14-20 | Parachute Ant, Foam Ant, Fur Ant |
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August 1 - October 1
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Tricorythodes | 18-22 | Trico Spinner, Adams, CDC Biot Trico |
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August 15 - October 1
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Fall Caddis | 6-8 | Mikaluck Sedge, Goddard Caddis, Stimulator (Orange, Brown & Green) Elk Hair Caddis |
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September 1 -August 15
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Blue Winged Olive | 18-20 | CDC biot BWO, BWO, Adams |
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Year Round
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Midges (when temperature permits) | 16-22 | Black Gnat, Griffith's Gnat, chronomid nymphs |
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Other Popular & Versatile Bow River Patterns
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2-14 | San Juan Worm (Wire & Chenille versions) | |
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6-12 | Chernobyl Ant | |
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12-16 | Gold Ribbed Hare's Ear Nymphs (Bead Head) | |
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14-18 | Pheasant Tail Nymphs (Bead Head) | |
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Fall & Winter
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10-14 | Mini Leeches | |
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Fall
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Back Swimmers | 14-18 | Prince nymph, Foam Water Boatman |
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Fall
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12-16 | Foam Beetle, Deer Hair Beetle | |
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12-18 | Prince Nymph (Bead Head) | |
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2-10 | Clouser Minnow | |
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2-10 | Wooly Buggers & Bow River Buggers | |
Old Man River Drainage
( Includes the Crowsnest River)
Dates |
Hatches |
Size |
Imitations (Patterns) |
| March 15-May 30 | Tiny Winter Black | 12-16 | Pheasant Tail Nymph |
| April15-June 15 | Blue Winged Olive (BWO) | 18-20 | CDC biot BWO, Thorax BWO, BWO dry and nymph |
| May 15-June15 | March Brown | 12-14 | March Brown, Thorax MB |
| May 15-June 25 | Salmon Fly | 4-8 | Orange Stimulator, Fluttering Stone, Bird's Stone, Improved Sofa Pillow |
| May 20-August 30 | Caddis | 12-18 | Elk Hair Caddis, Parachute Caddis, Latex Caddis Nymph, Flashback Caddis Nymph |
| June 1-July15 | Golden Stonefly | 6-10 | Yellow Stimulator, Improved Sofa Pillow |
| June 5- August 20 | Little Yellow Sallie | 10-14 | Elk Hair & Parachute Caddis (yellow body), Little Yellow Stone, Gold Ribbed Hare's Ear Nymph |
| June 5-July 30 | Quill Gordon | 14-16 | Quill Gordon, Light Cahill |
| June 15-July 25 | Pale Morning Dun (PMD) | 16-18 | CDC PMD, PMD Dry, Light Cahill, Parachute PMD, PMD Spinner |
| June 15-July 15 | Western Green Drake | 8-10 | Green Drake Dry, Olive Paradrake, Green Humpy |
| July 5- August 5 | Small western Green Drake | 12-16 | Green Drake Dry, Green Humpy |
| July 15-September 15 | Grasshopper | 4-12 | Dave's & Whitlock's Hopper, Club Sandwich, Charlie Boy, Spent Hopper |
| July 15-October 1 | Ants (Black & Red) | 14-20 | Parachute Ant, Foam Ant, Fur Ant, Transpar-ant |
| August 5- October 5 | Fall Caddis (Sedges) | 6-10 | Goddard Caddis, Orange, Green & Brown Stimulator, Mikaluk Sedge, Elk Hair Caddis |
| September 1- October 15 | Blue Winged Olives | 18-20 | CDC Biot BWO, Thorax BWO, BWO dry and nymph |
| Other Popular & Versatile Crowsnest Patterns | |||
| 2-14 | San Juan Worm (Chenille & Wire) | ||
| 12-18 | Prince Nymph | ||
| 12-18 | Pheasant Tail Nymph | ||
| 12-16 | Gold Ribbed Hare's Ear | ||
| 4-10 | Kaufmann's Stonefly Nymph | ||
| 4-10 | Montana Stonefly Nymph | ||
| 12-16 | Royal Wulff & Royal Trude | ||
| 12-22 | Griffith's Gnat | ||
| 8-14 | Chernobyl Ant | ||
| 8-12 | Turk's Tarantula | ||
| 6-10 | Wooly Bugger | ||
| 4-10 | Clouser Minnow | ||
Red Deer River Drainage
(Includes Rivers such as North and South Ram, Stouffer Creek, and Clearwater)
*Applies more to Higher Elevation and mountain streams such as those indicated above, than lower elevation Foothills streams hatches.
Dates |
Hatch |
Size |
Imitations (Patterns) |
| June 1-August 30 | Caddis | 12-18 | Elk Hair Caddis, Parachute Caddis, Slow water caddis, Latex Caddis Nymph, Flashback Caddis Nymph |
| July 1- August 15 | Golden Stonefly | 6-12 | Orange and Yellow Stimulator, Yellow Montana Stone, Kauffman's Golden Stone |
| July 15-August 15 | Western Green Drake | 10-12 | Green Drake Dry, Thorax Green drake, Parachute Green Drake, Olive Paradrake |
| August 1- September 25 | Grasshopper | 6-12 | Dave's & Whitlock's Hopper, Club Sandwich, Charlie Boy |
| August 15-September 15 | Blue Winged Olive (BWO) | 18-20 | CDC Biot BWO, BWO Dry, Parachute BWO, BWO Spinner |
| Other Popular & Versatile Patterns | |||
| 12-16 | H&L Variant | ||
| 12-18 | Griffith's Gnat | ||
| 12-16 | Adams | ||
| 8-12 | Turk's Tarantula | ||
| 8-14 | Chernobyl Ant | ||
| 12-16 | Royal Wulff & Trude | ||
| 8-10 | Wooly Bugger | ||
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