Grey Reef Tailwater Fly Fishing

Grey Reef Anglers
North Platte River Lodge & Guided Float Trips
Outfitters for the Grey Reef & Miracle Mile Sections

Grey Reef Tailwater on the North Platte River: One of the Best Wyoming Fly Fishing Rivers

Welcome to the best fly fishing on the Lower North Platte River in central Wyoming. Below Grey Reef Dam a tailwater fishery exists known for huge trout, and light fishing pressure.

A Wyoming fly fishing float trip starts right here on the Grey Reef section of the North Platte River. This tailwater is home to wild rainbow, cutthroat and brown trout, all familiar breeds to your expert Wyoming fly fishing guide. Due to warmer winter water release, the Grey Reef section of the North Platte River stays open even in the dead of winter and offers great fly fishing in Wyoming year round. Flows at Grey Reef Dam range from 500cfs in the spring/fall to 3500cfs in the summer months. Stable flows at Grey Reef produce an environment rich in aquatic life. Scuds, midges and aquatic worms maintain these huge trout throughout the winter months. Hatches begin with spring baetis and continue into the summer months including yellow stone flies, pale morning duns, crane flies, tricos, and caddis. Due to their rich environment these trout are extremely healthy and incredibly hard fighting. Most of the trout caught at Grey Reef are in the 18-20 inch range with lots of girth!


It is no understatement when people say that Grey Reef is by far the best big rainbow trout fishery in the US!

GREY REEF Full Day Guided Fly Fishing Float Trips for 1-2 people $550/boat- transportation, rods, lunch, flies
Another Grey Reef Anglers VIDEO!

Grey Reef Anglers N. Platte River Float Trips

Grey Reef Anglers – What is expected of my guide?

Your Wyoming fly fishing guide can be expected to show up on time with a clean drift boat and a great attitude. He will rig your fly rod for the day or assist you if you want to rig your own. Your guide will share his knowledge base of rigging, knots, fly selection, and fly fishing techniques. A friendly, patient, and professional guide will take the time to answer any questions on game hunting and fly fishing in Wyoming. Your Wyoming fly fishing guide will not just have the knowledge to put you in the right spot for success but will have that great personality to make your day both enjoyable and productive.

What to Bring on Your North Platte River Grey Reef Fly Fishing Trip?

Camera, Polarized Sun Glasses, Warm and Cold weather clothing, a wind breaker, a hat to help shield the sun, Sun Screen, Waders (seasonal), Fly Rod (we can provide if needed), Rain Jacket, fingerless gloves (seasonal), and anything else you think you might need while boating.
A fat Grey Reef Cuttbow on a hopper!

Grey Reef Anglers Provides

Transportation to and from your accommodations (airport shuttle if needed) Lunch and Beverages on all full day trips, Half day trips bring their own lunch Rods, Reels and Flies All other tackle needed (split shot, etc…)

Fly Rod Suggestions

A Wyoming fly fishing guide from Grey Reef Anglers would suggest a 9′ 6wt Rod equipped with a floating line for nymph fishing for the Grey Reef and Miracle Mile Section of the North Platte River. Our streamer fishing can be done on the same rod, or we can suggest a 9′ 7wt Rod with a floating or sink tip line. A softer action 9′ 5wt Rod for dry flies rounds out the requirements for a completely enjoyably time fly fishing in Wyoming.
Call us at 307-267-2559 for trip details as well as flight info for Casper International Airport

Best time of year to fly fish Wyoming and suggested Fly Fishing Patterns
by season for Grey Reef and the Miracle Mile sections of the North Platte River, Casper, Wyoming

Gray Reef Spring Fishing Season

March – May
By far the best overall time of year for numbers of trout to the net. Unpredictable weather, but who cares when your catching that many trophy trout!
Tan,Olive, Orange, Pink Scuds 12-16
Red and Black Midges, sizes 18-22
Blue Winged Olive May fly Patterns, sizes 16-18
Red Larva Lace Worm sizes 12-16
Pine Squirrel Leech Patterns sizes 12-14
Egg Patterns

Grey Reef Summer Fishing Season

June – August
Weather is much nicer and dry fly fishing is great, especially the hoppers!
Great time for huge trout on streamers as well.
Yellow Sally Stone Fly’s nymphs sizes 14-18
Golden Stone 4-8
BWO’s sizes 16-18
Leaches 12-14
Cream Caddis sizes 14-16/
Trico Dry Fly sizes 18-22
Hopper Patterns Various Big size Streamers

Grey Reef Fall Fishing Season

October-November, The forgotten season that produces huge fish and again big numbers of trout. The big attraction of coarse is the brown trout spawning and the great streamer action as a result.
A Wyoming fly fishing guide will recommend a combination of all of the above fly patterns for fall, depending on how early or late in the fall your Wyoming fly fishing trip is.

BIG SCUDS & Leeches

Bring your monster streamer box to make the most of fly fishing in Wyoming!

The fall on the North Platte River is the season for big brown trout so bring your 7wt rod if possible.

These are just some of the fly patterns we suggest, your guide has special flies that he ties himself and he will know the exact flies that are producing the most and make sure your rigged for success.

Go to Wyoming Game & Fish Dept. for license types and fees.