Hatch Information and Fly Selection:
The Big Thompson
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This information is provided by Front Range Anglers
Please call 303-494-1375 or email us for more information.

Attractors
Wulff (Grey, Grizzley, & Royal) #12-16, Humpy (Yellow, Royal, Red) #12-16, Royal Coachman #12-16, Renegade #14-16, Trude (Adams, Lime, Royal # 10 16), Adams Standard & Parachute #10-16
April-October
Baetis (Blue-winged Olive)
Baetis Emerger #18-22, Baetis Flashback Emerger #18-22, Baetis Beadhead Emerger #18-22, Pheasant Tail #16-20, Bead Head Pheasant Tail #16, Flash-back Pheasant Tail #16-20, RS-2 #18-22, Blue-winged Olive #16-20, Parachute Blue-winged Olive #16-20, Blue-winged Olive Thorax #16-20, Barr Emergers #18-20, Sparkle Duns #16-20
April-May,
September-October
Caddis
Caddis Emerger (Green, Brown) #18-20), Peeking Caddis (Olive, Cream) #16-18, Soft Hackle (Yellow, Olive, Hare's Ear) #16-18, Z-Wing Caddis Emerger (Olive, Amber) #12-16, Elk Hair Caddis (Grey, Tan, Olive, Brown) #12-18, Black Elk Hair Caddis #14-18, Goddard Caddis #12-16, Stimulator (Orange Tan, & Olive) #12-16, Emergent Sparkle Pupa #16-18, Spent Partridge #16-18, CDC Elk Hair #12-16, Western Coachman #12-18, Copper John (any color) #12-18
June-September
Green Drake
Olive Hare's Ear Nymph #10-12, Bead Head Olive Hare's Ear Nymph #10-12, Prince Nymph #10-12, Zug Bug #10-12, Green Drake Dun #10-12, Green Paradrake #10-12, Polyback Nymphs #12-14, Hairwing Duns #10-12
July-August
Midge
Brassie #16-22, Palomino Midge (Black, Olive) #18-22, Chironomid Pupa (Black, Brown, & red 16-20, Disco Midge #16-20, RS-2 #16-22, WD-40 (Grey, Brown, Black, Olive) #18-22, Pheasant Tail #18-22, Zebra Midge #18-22, Griffith's Gnat #18-22, Real Midge (Black, Cream) #18-22, Mercury Midge (black, olive, red, & cream) #18-22, Trailing Shuck Midges #18-22, Parachute Adams #18-22
All Year
Red Quill
Pheasant Tail #14-18, Red Quill #14-18, Rusty Spinner #14-18
June-August
Stonefly
Stonefly – Rubber Leg (Black, Brown) #4-10, Georges Stone #6-10, Bead Head Rubber Leg Stonefly (Black, Brown) #4-10, Rogue Giant Stonefly, Improved Sofa Pillow #4-8, Fluttering Orange Stonefly #4-8
May-August
Streamers
Wooly Bugger (Black, Brown) #4-10, Bead Head Wooly Bugger (Black, Brown, Olive) #4-10, Matuka (Black, Olive) #4-10), Conehead Bite Me Bugger (Olive, Black, Brown) #8-12, Muddler Minnow #4-10, Conehead Muddler Minnow #4-8, Zonker (Black/Silver, Natural/Pearl) #6-8, Marabou Muddler Minnow #4-10, Clouser Minnow (two tone colors) #6-10
April, September-November
Terrestrials
Black Fur Ant #14-18, Flying Ant w/flash (black red, or cinnamon) #14-18, Parachute Hopper #8-12, Dave's Hopper  #8-14, Whit's Hopper #8-12, Parachute Stone Hopper #8-12, Madam X-Hopper #8-12, Foam Beetles and Ants (black, brown, & cinnamon) #10-16, Foam Chernobyl Ants #8-12, Ice Cream Sandwich #6-10
August-September