Blue Stream Fly Fishing
Fly Fishing Report for:

Trail Creek - Ketchum - Idaho

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 Midge Afternoon 18-22 Zebra Midge, Griffith's Gnat
Scuds All Day 14-18 Olive or Orange Scud Patterns
February Midge Afternoon 18-22 Zebra Midge, Griffith's Gnat
Scuds All Day 14-18 Olive or Orange Scud Patterns
March Blue Winged Olive Afternoon 16-20 Parachute Adams, Blue Dun
April Blue Winged Olive Afternoon 18-20 BWO Emerger, Comparadun
Midge Morning 18-22 Palomino Midge
May Sally Stonefly All Day 10-14 Yellow Sally, Elk Hair Caddis
June Caddis Evening 14-16 Elk Hair Caddis, X-Caddis
July Small Stoneflies Morning 12-16 Humpies, Prince Nymph
August Grasshoppers All Day 8-12 Stimulator, Joe's hopper
September Grasshoppers All Day 8-12 Cow Killer, Madam X
Callibaetis Noon 14-18 Parachute Adams, Callibaetis emergers
October Blue Winged Olive Afternoon 16-20 Parachute Adams, WD-40
November Midge Morning 18-22 Olive RS2, Zebra Midge
Scuds All Day 14-18 Olive or Orange Scud Patterns
December Midge Afternoon 18-22 Zebra Midge, Griffith's Gnat
Scuds All Day 14-18 Olive or Orange Scud Patterns

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 Trail Creek in Ketchum offers exquisite fly fishing locations where anglers can experience its breathtaking beauty while catching various species of trout.

  • Trail Creek Road: The wild rainbows and brown trout are in abundance in this area, and there’s ample space for casting. Fly fishers should consider nymphing in the swift currents.

  • Dip Your Toes Bridge: The wooden bridge is a must-visit site known for bigger fish, but the area gets busy during peak season due to its accessibility. Early morning or late evening is the best time to fish here.

  • Boulder Field Run: Hemmed by natural boulders, this location is perfect for experienced fly fishers. The rapid, deep water houses a variety of trout species.

  • Trail Creek Campground: Suitable for families, there’s ample shoreline for fly casting and the possibility of hooking some brook trout, even close to the campsite. It’s also stocked annually.

Best Access Points

Trail Creek – Ketchum is a renowned fly fishing destination nestled within the mountains of Idaho. Here are the best access points to start your fly fishing adventure:
  • Fox Creek Bridge: This spot is highly recommended because of the wide variety of fish available.
  • Pioneer Cemetery: Found in the upper reach of Trail Creek, it’s a great location for brook trout.
  • YMCA Bridge: Offering a calm section of the creek, making it perfect for beginners.
  • North Fork Junction: Located near the town’s center; it’s the best for encountering rainbow trout due to the water clarity.
  • Corral Creek Bridge: This spot provides ample space and tranquil settings, providing the best opportunity for a peaceful fly fishing experience.
Remember to adhere to all fishing regulations to maintain the thriving aquatic ecosystem in Trail Creek – Ketchum.

Local Fish

  • Bull Trout: Known for their aggressive strikes and agility, fly fishers have to use special tactics to lure in these powerful predators.
  • Rainbow Trout: Famous for their vibrant colors and challenging fight, they usually fall for flies that imitate small minnows, nymphs, or crustaceans.
  • Brown Trout: Attracted to flies that resemble baitfish or large aquatic insects. Often found in deeper water with strong currents.
  • Brook Trout: Notoriously picky, these fish require precise fly presentation and the perfect water conditions to feed.
  • Mountain Whitefish: This species is a fly-fishing favorite in Ketchum, as they are plentiful and are typically receptive to a range of fly patterns.
  • Cutthroat Trout: Mostly caught on dry flies, these fish are known for their resistance making it a thrilling experience to catch one.
  • Arctic Grayling: This fish with strikingly beautiful dorsal fins is a crowd-pleaser when hooked due to their aerial performances.
  • Chinook Salmon: Fly fishing offers a unique and exhilarating experience with these strong, hard-fighting fish who put up a decent fight.

About The River

Nestled in the heart of Idaho lies a natural gem, the Trail Creek – Ketchum. Its raw scenic beauty and captivating history truly set it apart. Known for its rushing waters and lush greenery, Trail Creek has been a staple of Ketchum’s charm for decades.

Originally a part of the old Oregon Trail, this area has seen an exciting influx of migrants, miners and adventurers since the early 19th century. The list of historical events is long, but here are some highlights:

  1. The early 1860s: It was a central hub during the Idaho Gold Rush.
  2. The late 19th century: Famed author Ernest Hemingway made Ketchum his home.
  3. The modern era: The beautiful Sun Valley resort turns this into an all-season outdoor playground.

From the echoes of gold miners to the whispers of modern adventurers, Trail Creek – Ketchum breathes a life full of stories waiting to be discovered.


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