Spring River (Mammoth Spring)
spring creek in Arkansas
Mammoth Spring and the Spring River provide crystal-clear water, reliable temperatures, and a mix of wade and float fishing; a favorite spring creek-style fishery in northeast Arkansas with strong insect activity.
Clear skies and crisp fall temperatures around 56°F
- 01Clear skies and crisp fall temperatures around 56°F.
- 02USGS flow data is currently unavailable for Spring River (Mammoth Spring).
- 03Intermittent Blue-Winged Olive (BWO) hatches expected, especially on overcast days.
- 04Active Pale Morning Dun (PMD) hatches providing dry fly opportunities.
- 05Midges remain a consistent year-round food source subsurface.
- 06October Caddis are a significant fall hatch, with trout keying in on adults and pupae.
Past reports week by week
7 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 a consistent year-round food source in spring creeks with aquatic vegetation, appealing to Rainbow and Brown Trout in the fall.
Buy at AmazonWoolly Bugger (Olive)
An indispensable streamer imitating leeches and baitfish, effective year-round for aggressive Rainbow and Brown Trout, especially in cooling fall waters.
Comparadun (BWO)
Blue-Winged Olive (BWO) hatches are expected in fall on spring creeks, and this low-profile dry fly is excellent for selective trout feeding on emergers and adults.
Buy at AmazonFlashback Hare's Ear Nymph
A versatile general searching nymph, effective year-round and mimicking various aquatic insects active in the currents for Rainbow and Brown Trout in fall.
Midge Larva
Midge larvae are a year-round, consistent food source in spring creeks, especially effective for Rainbow and Brown Trout in cooler fall temperatures.
Buy at AmazonPMD (Pale Morning Duns)
Pale Morning Duns are actively hatching in fall, providing a key food source for opportunistic feeders like Rainbow and Brown Trout.
Zebra Midge
Midges are a primary and consistent food source year-round in consistent temperature spring creeks, making this a staple fall pattern for Rainbow and Brown Trout.
Buy at AmazonOctober Caddis (Dry)
October Caddis is a significant fall hatch, and this dry fly imitates the adult caddis, drawing strikes from Rainbow and Brown Trout.
Buy at AmazonWhere to fish and who to ask
Hardy / Spring River Float Put-Ins
Put-in locations near Hardy used for scenic float-and-fish trips through classic spring-fed water.
Mammoth Spring State Park Access
Primary access at the spring outlet with excellent wade fishing and consistent trout presence.
Fly shops within 40 miles
Eleven Point Fly Fishing
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Arkansas season by season
What changes on the water through the year, with the flies for each season.
Read before you go
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Quick answers
Common questions about Spring River (Mammoth Spring).
What flies work best on Spring River (Mammoth Spring)?
Our top scored fly patterns for Spring River (Mammoth Spring) right now are Scud (Pink/Orange) (80% confidence), Scud (Pink/Orange) (80% confidence), Sow Bug (80% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.
What fish species are in Spring River (Mammoth Spring)?
Spring River (Mammoth Spring) holds Rainbow Trout, Brown Trout. See the species links on this page for fly recommendations and seasonal behavior for each.
Is Spring River (Mammoth Spring) fishing well right now?
We publish a fresh bite report for Spring River (Mammoth Spring) each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.