Grey Reef
Fishable
Flow800 CFS
Trendfalling
Claritygood, 2-3 feet visibility
Temp58-65°F (rising concern in lower sections)
Sparkle Wing RS2 #18Poxyback PMD #18Drowned Trico Spinner #20Pheasant Tail #16-18
Miracle Mile Fishing Report: North Platte River Flows & Hatches
WY
intermediate
Quick Reference
| What | When | Key Numbers |
|---|---|---|
| Grey Reef fishing | Year-round (spring best for numbers) | 500-1,500 CFS ideal; 3,000-8,000 trout/mile |
| Miracle Mile fishing | Year-round (spring rainbows, fall browns) | 400-1,200 CFS ideal wading; 3,200+ trout/mile |
| Guided float trips | Book by February for spring | $550-700/day (1-2 anglers) |
| Fall trophy browns | Mid-October through November | 20-30" spawners; streamers and egg patterns |
| Fly shop | Platte River Fly Shop | 7400 State Hwy 220, Casper, WY |
| Regulations | Single-point barbless hooks required (2026) | Artificial flies/lures only at Grey Reef |
FISHABLE
Updated yesterday
Grey Reef at 800 CFS as of August 19 (per St. Peter's gauge)—flows have dropped significantly from the 2,200-2,300 CFS irrigation peak in mid-July. The drop has improved wade fishing opportunities on the upper Reef near the dam. Water clarity good at 2-3 feet. Water temps at 58-65°F near the dam but rising concern in lower sections as flows decrease—temperature management is critical. VOLUNTARY HOOT OWL CLOSURE in effect from Lusby downstream to Dave Johnson power plant: no fishing past noon in that stretch. Grey Reef to Lusby has no restrictions. Fish early morning and plan to be off water before afternoon heat on all sections to protect fish welfare. Trico spinnerfalls dominating the early morning bite—the headline hatch right now per St. Peter's, North Platte Lodge, and Ugly Bug. PMDs still producing mid-morning through early afternoon but tapering from peak. BWOs hatching on overcast days. Yellow sallies still active. Caddis filling gaps throughout the day. Early hopper activity starting—terrestrials beginning to enter the mix. Nymphing remains the most consistent producer: Sparkle Wing RS2 #18 and Poxyback PMD #18 leading the way per St. Peter's August 19 report, with worm, leech, and annelid patterns productive as displaced invertebrates from flow changes. Pine Squirrel Leech (Rust/Orange) #10 specifically called out by St. Peter's as a top pattern. Streamers productive early and late in the day—leech and crayfish imitations near structure in slower water. At 800 CFS both floating and wading are viable on the upper Reef; wade access much improved from mid-summer high flows. North Platte Lodge no longer selling fishing licenses—purchase before arriving.
Miracle Mile
Fishable
Flow550 CFS
Trendstable
Claritygood, 2-3 feet visibility
Temp56-62°F (warmest in afternoon, coolest near dam)
Orange Scud #14-16Rock Worm #12San Juan Worm (red beaded) #10Squirmy Worm #10
🎣 TACTICS RIGHT NOWThermal management is the defining factor for August fishing on both waters. Fish EARLY—be on the water at dawn for Trico spinnerfalls, which are the headline hatch on both the Reef and the Mile right now. PMDs still producing mid-morning but tapering from their June-July peak. Caddis filling gaps, yellow sallies still active, and early hopper activity adding terrestrial opportunities. Nymphing remains the most consistent overall producer: Sparkle Wing RS2 #18 and Poxyback PMD #18 leading on the Reef per St. Peter's, with worm/leech/annelid patterns productive from flow-displaced invertebrates. On the Mile at 550 CFS, lead with Orange Scuds, Rock Worms, and worm patterns with smaller Trico/caddis/PMD droppers. VOLUNTARY HOOT OWL CLOSURE in effect on Grey Reef from Lusby downstream to Dave Johnson power plant—no fishing past noon on that stretch. Grey Reef to Lusby and Miracle Mile have no formal restrictions, but all shops recommend fishing early morning and being off water before afternoon heat to protect fish. Grey Reef at 800 CFS—down from 2,300 mid-July peak—both floating and wading now viable on upper sections. Miracle Mile at 550 CFS with rock-steady flows—excellent wading, fish near the dam for coolest water. Streamers productive in low-light windows. Carry water, sunscreen, and plan for hot conditions. Wind remains a factor; bring a 7-weight.
Dry Fly
Drowned Trico Spinner #20 (dominant early morning hatch on both waters—the headline dry fly pattern right now)Theo's Spark-A-Lid #14PMD Comparadun #16 (still producing but tapering from peak)Elk Hair Caddis #14-16 (caddis filling gaps throughout the day)Parachute Adams #16-18BWO Parachute #18-20 (overcast days)Yellow Sally #14-16Dave's Hopper #10-12 (early hopper activity starting)Chubby Chernobyl #10-12 (terrestrial/attractor)Griffith's Gnat #18-22
Nymph
Sparkle Wing RS2 #18 (top producer per St. Peter's)Poxyback PMD #18Pheasant Tail #16-18Barr's Emerger #18-20Copper Ribbed RS2 #20Foamback RS2 #20San Juan Worm #10Squirmy Worm #10Orange Scud #14-16Rock Worm #12Thin Mint #16-18Red Larva #14-16Annelid Red #14Pine Squirrel Leech (Rust/Orange) #10 (called out by St. Peter's)Pat's Rubber Legs #6-8 (brown/grey/chocolate)Caddis Nymph #16Macgruber Black #16worm and leech patterns displaced by flow changes
Streamer
Pine Squirrel Leech (Rust/Orange) #10Micro-Envy #6 (white/black/olive)Mini Dungeon (white/black/natural)UV Leech #8-10Pine Squirrel Leech Craw #8Woolly Bugger #6-8 (olive/black)crayfish patternsarticulated leeches near structure in slower water
FORECASTGrey Reef at 800 CFS and dropping from peak irrigation flows—down from 2,200-2,300 CFS in mid-July. The flow reduction has improved wade fishing access on the upper Reef near the dam but is raising water temperature concerns in lower sections. Expect flows to continue declining through late August and September as irrigation demand eases, transitioning toward fall base flows. Water temps 58-65°F near the dam, warmer downstream—the voluntary hoot owl closure from Lusby downstream to Dave Johnson power plant (no fishing past noon) reflects the thermal stress. Grey Reef to Lusby remains unrestricted but fish early regardless. The Trico spinnerfall is the marquee hatch right now—dominant early mornings on both waters. PMDs still in the mix but past peak. Caddis consistent. Early hopper activity building and should strengthen through late August into September. Cooler weather is forecast which should provide some relief from the thermal pressure and could extend the daily fishing window. Miracle Mile holding steady at 550 CFS—excellent wading conditions through the rest of summer. Fish near the dam for coolest water. Fall transition approaching: expect brown trout to start moving by late September, with streamer fishing improving steadily through October. Book fall guide trips now—October and November fill up fast. North Platte Lodge no longer selling fishing licenses—purchase before arriving.
Overview
The North Platte River in central Wyoming holds two of the most productive tailwater fisheries in the Rocky Mountain West. The Miracle Mile, a 5.5-to-8-mile stretch between Kortes Dam and Pathfinder Reservoir, and Grey Reef, the 40-mile tailwater below Grey Reef Dam south of Casper, consistently rank among the top trout waters in the lower 48.
These are not scenery-first rivers. The landscape is high desert: sagebrush flats, sparse cottonwoods, and wind that will test your casting stroke. What they lack in postcard beauty they make up for in sheer biomass. Wyoming Game and Fish Department electrofishing surveys show 3,200 trout per mile at the Miracle Mile and up to 8,000 per mile in the upper Grey Reef. Fish average 16 to 20 inches, with legitimate shots at 10-pounders throughout the year.
Both fisheries owe their productivity to dam-controlled releases that keep water temperatures stable and nutrient-rich. Cold, oxygenated water from deep reservoir outlets creates ideal growing conditions for rainbow and brown trout, producing the kind of fish densities that draw anglers from across the country.
The high desert terrain surrounding the North Platte: sagebrush, rolling hills, and wind
Location and Access
The Miracle Mile and Grey Reef sit roughly 35 to 50 miles southwest of Casper along Wyoming Highway 220. Casper is the nearest city with full services, including fly shops, lodging, and restaurants.
Getting There
- From Casper: Take Hwy 220 south. Grey Reef Dam access is about 30 miles; Miracle Mile is 50 miles.
- From I-80 (Rawlins/Sinclair): Take the Seminoe/Kortes Road north for roughly 40 miles to reach the Miracle Mile.
- Nearest airports: Casper-Natrona County International (CPR). Denver International (DEN) is about 4.5 hours south.
Miracle Mile Access
The Miracle Mile sits between Kortes Dam and Pathfinder Reservoir. Two main parking areas provide access:
- Engstrom parking area (east side): Modern restrooms and camping
- Guthridge parking area (west side): Modern restrooms and camping
- 14-day camping limit applies at both areas
The access road is unpaved and notorious for becoming impassable when wet. Plan on bringing a vehicle with decent clearance, and check road conditions before committing to the drive. Cell service is nonexistent along most of the Mile. This is remote water, so bring everything you need.
Winter note: Wyoming Game and Fish does not plow the access road or parking areas in winter.
Grey Reef Access
Grey Reef has considerably more access infrastructure:
- Grey Reef Access Area (at the dam): Barrier-free fishing pier, restrooms, boat ramp 0.5 miles downstream
- Lusby Public Fishing Access: Wade fishing and boat launch
- Government Bridge: Popular boat launch and wade access
- Trappers Route #1: Between Alcova Dam and Casper, with four campgrounds
Land ownership: Much of the Grey Reef corridor runs through private land. Wyoming law restricts access to the water itself, not the banks. Trespassing fines can run up to $250. Stick to public access points or float through private stretches in a drift boat.
Dam releases control tailwater conditions, keeping water cold and fish-friendly year-round
Flow Windows
Both sections are tailwaters, meaning dam operators control flows. This is good news: you rarely deal with the unpredictable blowouts common on freestone rivers. The bad news is that flow changes can happen with little warning.
Grey Reef Flow Ranges
| Flow (CFS) | Conditions |
|---|---|
| 500 | Winter base flow. Excellent wading, concentrated fish |
| 500-1,500 | Ideal fishing range. Good wade and float options |
| 1,500-3,000 | Summer irrigation releases. Float-only for most sections |
| 3,000+ | High water. Experienced guides only |
Summer flows typically run 2,000 to 3,000 CFS during irrigation season. Winter drops to around 500 CFS. If you can time a trip, the transition periods (late September/early October and late March/April) often offer the best combination of moderate flows and active fish.
Miracle Mile Flow Ranges
| Flow (CFS) | Conditions |
|---|---|
| 400-800 | Low but fishable. Great wading water |
| 800-1,200 | Sweet spot. Both wading and floating work |
| 1,200-2,500 | Higher flows. Wading gets dicey; floats are productive |
| 2,500+ | Experienced guides only. Flows have historically hit 10,000+ CFS |
Track conditions in real time on RiverReports before making the drive, especially for the Miracle Mile. Burning an hour of dirt road only to find blown-out water is a hard lesson.
Key Sections
Miracle Mile
Despite the name, the Miracle Mile stretches roughly 5.5 miles from Kortes Dam downstream to the upper reaches of Pathfinder Reservoir. When Pathfinder is low, the fishable stretch can extend to 12 or even 15 miles.
Kortes Dam to the Bridge (2 miles): The steepest gradient on the Mile. Fast water pours through a canyon with pocket water, boulders, and defined pools. This is where the biggest fish tend to stack up, particularly near the dam outlet. Expect white-water conditions that require an experienced oarsman if you're floating.
Bridge to Chalk Bluffs (2 miles): The river widens into a series of large shelves followed by deep runs. Classic nymphing water. Wade anglers do well here because the structure is readable and the bank access is decent.
Chalk Bluffs to Pathfinder (variable): How much river is fishable here depends on the reservoir level. In low-water years, this section opens up miles of additional water. The terrain flattens into sagebrush prairie, and the river character changes to slower, deeper runs. Productivity varies season to season.
The North Platte winds through broad valleys between the reservoirs
Grey Reef
The Grey Reef tailwater runs roughly 40 miles from Grey Reef Dam downstream through and past Casper. The upper sections hold the highest fish densities.
Grey Reef Dam to Lusby (8 miles): The most famous and productive stretch. Fish density in this section runs 3,000 to 8,000 trout per mile depending on the survey year, with an average size of 17 to 19 inches. This is primarily float water on private land, though the Grey Reef Access Area and Lusby both offer wade access at the endpoints. Grey Reef Anglers estimates roughly 30 boats per day on a busy spring weekend, a fraction of what comparable tailwaters like the South Platte or Missouri see.
Lusby to Government Bridge (4 miles): Nice riffles at medium depth mixed with some longer, slower stretches. This section can get skinny at low winter flows. Decent wade access at both ends.
Government Bridge to Whitetail (2 miles): Rocky riffles where fish often hold in surprisingly shallow water, sometimes 12 inches deep. Fish here get less pressure because many anglers float right past.
Whitetail to Sechrist (10 miles): The longest continuous public access stretch on the river. Rocky riffles throughout. Good wade-and-fish water if you're willing to hike away from the access points.
Bessemer Bend to Robertson Road (8 miles): A fall favorite. Brown trout migrate to this section in October and November for the spawn, creating opportunities for outsized fish on streamers and egg patterns.
Seasons
Spring (March through May)
Spring is the marquee season for numbers. On the Grey Reef, thick Baetis (blue-winged olive) hatches fire up in March and build through April and May. Nymphing remains the bread-and-butter approach, but you'll get genuine dry fly windows during overcast afternoons when BWOs blanket the water.
On the Miracle Mile, spring means spawning rainbows. Fish in the 24-to-30-inch class run upstream from Pathfinder Reservoir starting in March. These are the biggest fish of the year, and they're focused on feeding heavily. Primary food sources include midges, leeches, scuds, and crayfish.
Spring also means wind. Persistent 15-to-25 mph gusts are the norm across this high desert country. Bring a 7-weight for wind management and a jacket that blocks it.
Important 2026 regulation: Grey Reef from the dam downstream to Ledge Creek is closed April 1 through May 15 to protect spawning rainbow trout.
The dirt road to the Miracle Mile: check conditions before committing to the drive
Summer (June through August)
Summer brings the best dry fly fishing of the year. The Miracle Mile's golden stonefly hatch (roughly Memorial Day through late June) produces explosive surface takes. Stimulators, Sofa Pillows, and Pat's Rubber Legs in sizes 6-10 all produce. After the stones taper off, caddis and PMD hatches carry the dry fly action into July.
On the Grey Reef, summer hatches overlap: PMDs, Yellow Sallies, Tricos, and caddis all produce at various points. The best dry fly action comes at dusk during caddis flights and in the early morning during Trico spinnerfall. Midday fishing shifts to nymphs and small dry-droppers.
Grey Reef summer flows jump to 2,000-3,000 CFS during irrigation releases. This pushes most anglers to float rather than wade. Water clarity remains good unless tributary inflows (Bear Creek, Bolton Creek) muddy things up after storms.
Fall (September through November)
Fall is trophy season, especially for brown trout. Starting in mid-October, browns put on spawning colors and aggressive attitudes. They migrate to the upper Grey Reef sections and stage in predictable lies, creating the year's best opportunities for fish over 20 inches.
Streamer fishing peaks in late October and the first two weeks of November. Bring a 7-weight rod and a box of oversized patterns: Circus Peanuts, Woolly Buggers, Bunny Leeches, and Sculpzillas in olive, black, and white. Egg patterns also produce as both browns and whitefish begin spawning.
On the Miracle Mile, brown trout from Pathfinder Reservoir make their annual spawning run upstream in November and December. The same aggressive streamer tactics apply.
Fall on the river: cottonwoods turn gold as brown trout move into spawning lies
Winter (December through February)
Both fisheries remain open year-round, and winter fishing can be surprisingly productive for anglers willing to deal with cold temperatures and short days.
Grey Reef at 500 CFS winter base flow concentrates fish in predictable holding water. Midge hatches fire daily, and leech and scud patterns work well through the deeper runs. The fishing window is narrow (roughly 11am to 3pm when water temps nudge upward), but the lack of crowds is a genuine advantage.
The Miracle Mile is more challenging in winter. The unpaved access road may be impassable, and the remote location means no bailout options if weather turns. Come prepared for self-sufficiency.
Winter tailwater conditions: cold air meets warmer dam releases, creating frost and mist along the banks
Hatches and Fly Patterns
Season-by-Season Recommendations
Winter (December through February)
- Midges: Zebra Midge #20-22, Mercury Midge #22, Griffith's Gnat #18-20, Top Secret Midge #20
- Subsurface: Leech patterns #6-8, Scud #14-16, San Juan Worm #10-12
- Streamers: Woolly Bugger #6-8 (olive, black), Bunny Leech #4-6
Spring (March through May)
- BWOs: Parachute BWO #18-20, WD-40 #20, Sparkle Dun #18
- Nymphs: Pheasant Tail #16-18, Copper John #14-16, Hare's Ear #14-16
- Miracle Mile specials: Orange Blossom Special #14-16, Platte River Spider #14, Egg Pattern #12-14
Summer (June through August)
- Stoneflies (Miracle Mile): Stimulator #8-10, Sofa Pillow #6-8, Pat's Rubber Legs #6-8, Double Bead Peacock Stone #8
- PMDs: Pheasant Tail #16, Sparkle Dun #16, Comparadun #16
- Caddis: Elk Hair Caddis #14-16, Goddard Caddis #14
- Tricos: Trico Spinner #20-22 (mornings)
- Yellow Sallies: Yellow Sally #14-16
Fall (September through November)
- Streamers: Circus Peanut #2-4, Sculpzilla #4-6, Woolly Bugger #4-8
- Egg patterns: Nuke Egg #10-12, Glo Bug #10-12
- BWOs: Same spring patterns; fall hatches often stronger than spring
- Midges: Rojo Midge #20-22, Zebra Midge #20
A well-stocked fly box for North Platte tailwaters: midges, BWOs, stonefly nymphs, and streamers
The Local Patterns
Two flies originated on the North Platte and still produce consistently:
- Platte River Spider (#14-16): A soft-hackle wet fly that imitates emergers. Deadly swung through riffles during BWO and midge activity.
- Platte River Special (#12-14): A flashy attractor nymph. Works as a lead fly in a two-nymph rig on both the Mile and the Reef.
- Orange Blossom Special (#14-16): An egg/attractor pattern that's a staple on the Miracle Mile, especially during rainbow spawning season.
Ask for these at any of the local fly shops. They'll steer you toward the right sizes and colors for current conditions.
Wading vs. Float Fishing
When to Wade
Wade fishing works best during lower flows (under 1,000 CFS) and on sections with public bank access. The Miracle Mile offers the most consistent wade fishing because much of it crosses public land. On the Grey Reef, wade access is limited to the public areas at the dam, Lusby, Government Bridge, and a few other access points.
Bring felt-soled boots or studded rubber soles. The cobble bottom gets slippery, and the cold tailwater temperatures mean a swim is more than just uncomfortable.
When to Float
Float trips are the most productive way to fish the Grey Reef. A drift boat covers 8 to 16 miles of water in a day, giving you access to holding lies that wade anglers never reach. Most guided trips use StealthCraft drift boats that seat two anglers and a guide.
On the Miracle Mile, floating is feasible but more technical. There are no formal boat ramps, and the upper section below Kortes Dam has genuine whitewater. This is not water for a novice oarsman. Grey Reef Anglers and other experienced guides know the put-in spots and how to handle high-water conditions.
Pronghorn are a common sight along the drive to the Miracle Mile through Wyoming's open range
Regulations (2026)
The Wyoming Game and Fish Department implemented new regulations for 2026 that anglers need to know:
Hook Requirements
- Miracle Mile and Afterbay: Single-point barbless hooks required. Any bait, lures, or flies permitted.
- Grey Reef and Cardwell: Single-point barbless hooks required. Artificial flies and lures only (no bait).
- Pegged attractors prohibited at Fremont Canyon and Grey Reef.
Why the Change
A 2023 Wyoming Game and Fish study found that 21.4% of trout in the Miracle Mile showed visible hooking injuries. The barbless requirement aims to reduce damage to catch-and-release fish.
Grey Reef Spawning Closure
Grey Reef from the dam downstream to Ledge Creek is closed April 1 through May 15 to protect spawning rainbow trout. This is new for 2026.
Fly and Lure Zone Expansion
The artificial-flies-and-lures-only section at Grey Reef has been extended downstream to Government Bridge.
Commercial Guide Registration
Wyoming now requires all commercially guided fishing vessels to register annually ($325 fee), with visible registration documentation while operating.
Creel Limits
Miracle Mile: 3 trout daily, no more than 1 over 16 inches. Grey Reef area: check current Wyoming eRegulations for specific limits by section.
Gear Recommendations
Rods:
- 5-weight: Your primary nymphing and dry fly rod for both sections
- 7-weight: Essential for wind management (you'll use it more than you think), streamer work, and stonefly fishing on the Mile
Leaders and Tippet:
- 9-12 foot leaders tapered to 3X-4X for nymphing
- 5X-6X fluorocarbon tippet for clear-water midge fishing on the Grey Reef
- 0X-2X for streamers and stonefly dry flies
Other Essentials:
- Wind-blocking outer layer (seriously, the wind is relentless)
- Felt-soled or studded wading boots
- Wading staff for Miracle Mile cobble
- Quality polarized sunglasses (high desert glare is intense)
- Sunscreen and lip balm with SPF
- Cell phone charger (no cell service at Miracle Mile; plan accordingly)
Local Fly Shops, Guides, and Lodging
Fly Shops
Platte River Fly Shop (Casper): Operating since 1994, the longest-running fly shop and Grey Reef outfitter in the area. Located at 7400 State Hwy 220. Open Mon-Fri 8am-5pm, Sat 8am-noon.
The Reef Fly Shop (North Platte Lodge): The first permitted outfitter on the Grey Reef (since 1998). Located right on the river with lodging on-site.
Ugly Bug Fly Shop (Casper): Run by Crazy Rainbow Fly Fishing Guide Service. Full-service shop with guides for both Grey Reef and Miracle Mile.
Guide Services
Grey Reef Anglers: Experienced guides on both the Grey Reef and Miracle Mile. Float trips on StealthCraft drift boats.
- Grey Reef half day: $550/boat (1-2 anglers)
- Grey Reef full day: $675/boat
- Miracle Mile full day: $700/boat
- Miracle Mile extended (Bridge to Pathfinder): $900/boat
- Contact: 307-267-2559
Four Seasons Anglers: Guides the upper North Platte, Miracle Mile, and Grey Reef. Detailed hatch charts and fishing reports on their website.
High Plains Fly Fishing: Operates primarily on the upper North Platte and Miracle Mile. Float and wade trips available. Contact: 307-399-9464
Trout On Inn: Lodging and guiding combined, located 100 feet from the Grey Reef at Lusby. Offers drift boat rentals and shuttle service. Contact: 307-462-1917
Lodging
- Trout On Inn: Right on the Grey Reef. Guided packages with lodging and meals.
- North Platte Lodge: On-river lodging at the Reef Fly Shop location.
- Grey Reef Anglers Lodge: Full lodge operation with guides and accommodations.
- Casper hotels: Full range of options 30-50 miles from the fishing.
Book guided trips and lodging well in advance for spring (March-May) and fall (October-November). These are the prime seasons, and the best guides fill up months ahead.
Clear water over rocky cobble, the kind of readable structure that makes wade fishing productive
Hazards and Safety
Wind: The single biggest hazard on both waters. Sustained 20+ mph winds are common, and gusts can reach 40-50 mph. This affects casting, wading stability, and hypothermia risk. Don't underestimate it.
Cold water: Tailwater temperatures stay in the 38-46°F range year-round. A wading slip in winter is a genuine emergency, especially at the Miracle Mile where help is far away.
Remote access (Miracle Mile): No cell service, no paved road, no nearby services. Carry emergency supplies, a first-aid kit, and let someone know your plan.
Spring spawning closure: Respect the new April 1 through May 15 closure on the upper Grey Reef. Fishing in closed areas puts the resource at risk and carries stiff penalties.
Private land: Stay in the water or at public access points. Wyoming trespass laws are enforced along the Grey Reef corridor.
Frequently Asked Questions
What is the Miracle Mile in Wyoming?
The Miracle Mile is a 5.5-mile stretch of the North Platte River between Seminoe and Pathfinder reservoirs in central Wyoming. It holds over 3,200 trout per mile, including rainbow and brown trout exceeding 20 inches. The name comes from the exceptional concentration of trophy fish in a short section of river, fed by cold, nutrient-rich reservoir releases.
Where to fish the Miracle Mile?
The best access is from Miracle Mile Road off Highway 220 between Casper and Rawlins. Key spots include the Miracle Mile Bridge access, the Pathfinder Reservoir inlet, and several pulloffs along the dirt road. Wade carefully -- the bottom is rocky and uneven. Flows between 400 and 1,200 CFS are ideal for wading; above that, consider a drift boat.
What is the best time of year to fish the Miracle Mile?
Spring (March through May) is prime for rainbow trout on egg patterns and midges. Fall (October through November) brings the brown trout spawn with trophy fish on streamers. Summer offers consistent dry fly fishing with PMDs and caddis. Winter fishing is productive but demands cold-weather preparation -- the remote location has no services.
Using RiverReports
Check current North Platte River flows on RiverReports before every trip. The tailwater character of both sections means flows can change based on dam operations, sometimes with limited notice.
What to watch for:
- Grey Reef at 500 CFS: Winter base flows. Best wading, concentrated fish. Check the Grey Reef flow page for historical comparisons.
- Miracle Mile at 400-1,200 CFS: Your wading sweet spot. Higher than 1,200 and you'll want a drift boat.
- Flow trends: A rising flow trend can indicate upcoming irrigation releases on the Grey Reef. Falling trends in fall signal the transition to winter fishing.
- Historical data: Compare current conditions to the 10-year average to gauge whether conditions are normal, high, or low for the time of year.
The flow data updates continuously, so you can make real-time decisions about which section to fish and whether to wade or float.
River Intel Weekly
Weekly flow updates and fishing intel.
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