North Platte River Basin

North Platte River Basin

Target Species Rainbow, Brown Trout
Notable Hatches Tricos, Caddis, BWOs
Total Rivers: 10
Primary Hub: Casper / Saratoga
Airport: Casper (CPR) / Denver (DEN)
Best Season: Year-Round

About the North Platte River Basin

The North Platte River Basin is a legendary fly fishing destination that spans two states, from the windswept meadows of North Park, Colorado, to the high plains reservoirs of Wyoming. It is famous for producing massive trout and incredibly high fish counts per mile. This system includes everything from intimate freestone creeks to sprawling, nutrient-rich tailwaters.

Key Sections

  • North Park (Colorado): The headwaters meander through the high-altitude valley of North Park. This includes the North Platte, Michigan, and Illinois rivers. It is excellent meadow fishing for Brown Trout.
  • Northgate Canyon: As the river crosses into Wyoming, it enters a rugged wilderness canyon known for its stonefly hatches and adventurous floating.
  • The Miracle Mile (Wyoming): A famous tailwater section between Seminoe and Pathfinder Reservoirs. It remains ice-free and offers the chance to hook 20+ inch trout year-round.
  • Grey Reef (Wyoming): Below Alcova Dam, this tailwater boasts some of the highest trout densities in the world (3,000-5,000 fish per mile). It is a nymphing powerhouse.

Seasons & Strategies

The North Platte is a year-round fishery, but spring (March-May) is famous for the "flush" and the pre-spawn Rainbow run.

  • Spring: Massive Rainbows move into the tailwaters to spawn. Redds should be avoided, but the fishing in deep runs is electric with eggs, leeches, and midges.
  • Summer: Trico hatches in the mornings and Caddis in the evenings. The "Reef" fishing slows down with weeds, but the "Mile" stays consistent.
  • Fall: Brown trout spawn and aggressive streamer fishing dominates the conversation.

Fly Fishing Rivers in the North Platte River Basin

Frequently Asked Questions

What are the best fly fishing rivers in the North Platte River Basin?

The Fly Fishing Encampment River โ€“ Encampment is widely considered the crown jewel of the North Platte River Basin, but the area offers many excellent options. Be sure to explore the various tributaries and sections listed in our guide for diverse experiences.

When is the best time to fly fish in the North Platte River Basin?

While summer (June-September) offers the most consistent dry fly action, the North Platte River Basin has productive fishing year-round. Fall brings aggressive brown trout and excellent streamer fishing, while spring sees important hatches like Blue Winged Olives. Winter tailwater fisheries can also be excellent.

What fish species can I catch in the North Platte River Basin?

Anglers can primarily target Brown Trout and Rainbow Trout, with Cutthroat Trout and Brook Trout available in higher elevation streams. Some waters also hold Mountain Whitefish and other species.

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