Blue Stream Fly Fishing
Fly Fishing Report for:

North Platte River - above Seminoe Res - Wyoming

Hatch Chart - Best Access/Spots - Local Fish - About

Water Flow Chart

Using Water Flow Charts & Weather Reports: Begin with our water flow charts to grasp stream velocity and volume – look for stable or rising trends to pinpoint ideal fishing times. Learn to interpret sudden spikes or drops, which can indicate potential challenges. Next, consult our weather reports to understand ambient conditions. Pairing the two, you can anticipate fish behavior, choose the right gear, and select the best fishing spots. Use these tools together for a holistic approach to your next fishing adventure.

In-Depth Weather

Directions To Location

Hatch Chart

Month Hatch Time of Day Recommended Fly Sizes Popular Fly Patterns
January Midges Afternoon #18-22 Zebra midge, RS2
Caddisflies Evening #14-18 Elk hair caddis
February Midges Afternoon #18-22 Zebra midge, RS2
Stoneflies All Day #6-8 Golden stone
March Baetis Mayflies Afternoon #18-20 BWO emerger
Midges Afternoon #18-22 Zebra midge, RS2
Stoneflies All day #6-8 Golden stone
April Baetis Mayflies Afternoon #18-20 BWO emerger
Midges Afternoon #18-22 Zebra midge, RS2
May Caddisflies Evening #14-18 Elk hair caddis
Stoneflies All day #6-8 Golden stone
Pale Morning Dun Mayflies Morning #16-20 PMD dun, PMD emerger
June Yellow Sallies Afternoon #14-16 Little yellow stone
Caddisflies Evening #14-18 Elk hair caddis
Stoneflies All day #6-8 Golden stone
July Tricos Mayflies Morning #20-24 Trico spinner, Trico dun
Yellow Sallies Afternoon #14-16 Little yellow stone
Caddisflies Evening #14-18 Elk hair caddis
August Tricos Mayflies Morning #20-24 Trico spinner, Trico dun
Hoppers Afternoon #8-12 Chernobyl hopper, Red legged hopper
Caddisflies Evening #14-18 Elk hair caddis
September Baetis Mayflies Afternoon #18-20 BWO emerger
Hoppers Afternoon #8-12 Chernobyl hopper, Red legged hopper
October Baetis Mayflies Afternoon #18-20 BWO emerger
Midges Afternoon #18-22 Zebra midge, RS2
November Midges Afternoon #18-22 Zebra midge, RS2
Stoneflies All Day #6-8 Golden stone
December Midges Afternoon #18-22 Zebra midge, RS2
Caddisflies Evening #14-18 Elk hair caddis

While we strive to ensure the precision of our hatch charts, some reflect broader river region insights. Through ongoing partnerships with local guides and fly shops, we’re committed to refining our data. Should you notice any inconsistencies or have feedback, we welcome you to reach out. 

Best Fishing Spots

The North Platte River above Seminoe Reservoir is teeming with excellent spots for fly fishing. Here are some of the best locations to angle for that prized catch:

  • Grey Reef: Renowned for its big trout and copious insect hatches, Grey Reef is a premier destination for fly fishing.
  • Miracle Mile: This stretch is known for a high concentration of trout. It’s a little more difficult to navigate, but well worth it for the exceptional fishing.
  • Fremont Canyon: Known for its clear water and large fish, Fremont Canyon offers many deep pools and hidden pockets for fly fishing.
  • Upper North Platte: This is a more secluded area, perfect for those seeking a more solitude experience with almost guaranteed plentiful catches.

Remember to always respect the wildlife and the river to ensure a sustainable environment for future generations of fish and fishermen.

Best Access Points

The North Platte River, above Seminoe Reservoir, offers numerous high-quality locales for the keen fly fisher. Key access points for outstanding fly fishing opportunities include:

  • Miracle Mile: This stretch of river downstream from Kortes Dam is renowned for its excellent trout fishing. Off-road trail accessible.

  • Grey Reef Access: Located near Alcova, it’s famed for productive Blue Ribbon trout waters. Paved road access.

  • Bennett Peak: This spot offers exceptional trout fishing amidst stunning scenery. Gravel road accessible.

  • Treasure Island: Situated midway between Saratoga and Sinclair, this island serves remote fishing adventures. Boat access only.

  • Six Mile Gap: Located near Encampment, this area provides fishing opportunities in a wilderness setting. Off-road trail accessible.

Please note that all these spots require respect for property rights and adherence to fishing regulations in the area.

Local Fish

  • Brown Trout: Known for their powerful fights and resilience in wide range of habitats.
  • Rainbow Trout: They are quite abundant in North Platte River and are revered for their ability to put up a good fight.
  • Mountain Whitefish: Mostly found in the fast-flowing waters and are often caught in large numbers.
  • Walleye: While not traditionally a fly fishing target, their presence in the North Platte River makes them a potential catch.
  • Cutthroat Trout: Highly sought after for their striking color, these are often found in the North Platte River.
  • Brook Trout: These are beautiful and spirited fish that offer a great fight once hooked.
  • Common Carp: A challenging species that requires skill and patience to hook but offers a rewarding fight in return.
  • Pike: Their sharp teeth and aggressive nature make them an excellent target for adventurous fly anglers. Pike offer a heart stopping strike and hard fight.

About The River

The North Platte River brims with an intriguing history that spans thousands of years. In its early days, Native Americans heavily depended on the river for food, water, and transportation.

In the 19th century, the river became a significant landmark for westward expansion. Pioneers used the river’s path as a guide on the famous Oregon Trail, with landmarks such as Chimney Rock and Scotts Bluff serving as waypoints on their journey.

Furthermore, the area above Seminoe Res is of particular interest. Here, the construction of Seminoe Dam in the 1930s created the Seminoe Reservoir- a vital resource for irrigation, hydroelectric power production, and recreational activities.

  • Dams along the river: In addition to Seminoe, Pathfinder Dam and Alcova Dam are remnants of the river’s transformative history.
  • Fishing: The North Platte River is renowned for its trout fishing, no more so than in the Miracle Mile, a stretch just above Seminoe Res.
  • Recreational Activities: Activities like boating, camping, and wildlife observation make the river a must-visit spot.
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