DePuy Spring Creek
spring creek in Montana
A classic limestone spring creek offering steady temperatures and incredible sight-fishing for selective trout.
River flow last 30 days
DePuy Spring Creek maintains stable water temperatures
- 01DePuy Spring Creek maintains stable water temperatures, providing consistent fall fishing for Grayling.
- 02October Caddis are actively hatching, offering significant dry fly opportunities.
- 03Blue-Winged Olive (BWO) and Mahogany Dun hatches are strong, especially on overcast days.
- 04Midges and scuds remain year-round subsurface staples for feeding fish.
- 05Egg patterns are effective due to fall spawning activity.
Past reports week by week
13 weeksWhat to tie on
Picked from reports, hatches and the season. Tap a fly for the recipe and where else it works.
Scud (Pink/Orange)
Freshwater shrimp (scuds) are abundant in the weed beds of DePuy Spring Creek, and a pink or orange variation serves as an excellent attractor for Grayling in cooler fall water.
Buy at AmazonPine Squirrel Leech (Olive)
Small leech patterns effectively imitate sluggish baitfish and annelids in cold fall water, enticing strikes from aggressive Grayling.
Zebra Midge
Midges are a primary and consistent food source year-round in spring creeks, making this a reliable subsurface pattern for actively feeding Grayling.
Buy at AmazonBlood Dot Egg
Fall is prime spawning season for some trout species, and Grayling will opportunistically feed on eggs drifting in the current, making this a highly effective pattern.
Buy at AmazonOctober Caddis
A significant fall caddis hatch that becomes a key food source for opportunistic feeders, especially Grayling, as cooler weather sets in on DePuy Spring Creek.
Mahogany Dun
Mahogany Duns are another important fall mayfly hatch in Montana, and Grayling will key into these insects on the surface.
Buy at AmazonBlue-Winged Olive Comparadun (BWO)
Blue-Winged Olives are a classic fall mayfly hatch on spring creeks like DePuy, particularly active on overcast days, providing excellent dry fly opportunities for selective Grayling.
Flashback Hare's Ear Nymph
This versatile nymph effectively mimics a variety of aquatic insects active subsurface year-round in DePuy Spring Creek, and is a strong searching pattern.
Where to fish and who to ask
DePuy Spring Creek Main Access
The main parking and check-in area for this private spring creek (requires reservation).
Fly shops within 40 miles
Dan Bailey's
Yellowstone Angler Fly Shop
Sweetwater Fly Shop
Dan Bailey's Outdoor Company
Get DePuy Spring Creek reports by email
Save this water and we'll email you a weekly summary of conditions, hatches and what's working.
Montana season by season
What changes on the water through the year, with the flies for each season.
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Quick answers
Common questions about DePuy Spring Creek.
What flies work best on DePuy Spring Creek?
Our top scored fly patterns for DePuy Spring Creek right now are PMD Cripple (95% confidence), Pale Morning Dun (PMD) Sparkle Dun (95% confidence), Flashback Pheasant Tail Nymph (90% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.
What fish species are in DePuy Spring Creek?
DePuy Spring Creek holds Grayling. See the species links on this page for fly recommendations and seasonal behavior for each.
Is DePuy Spring Creek fishing well right now?
We publish a fresh bite report for DePuy Spring Creek each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.