Wading is the most sensitive plan today. Use protected edges only, avoid crossings, and downgrade quickly if clarity or current feels wrong.

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Fly fishing report · Midwest
Spring Creek
A Spring Creek report for anglers planning the Black Hills water from below Sheridan Lake toward Keystone, with trailhead access, stocked-and-wild trout context, and technical clear-water tactics.
Check flow & weatherBest option: Float.
A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
Mode scores adjust the river-wide score for the risks of wading, bank fishing, or floating.
Bank and edge fishing is the safer default when water is high, pushy, or not fully verified.
A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
Confirm before you leave
Flow and weather right now.
Use the flow trend to confirm the score before you leave. Weather can change the safest and most productive fishing window.
River strategy
Fish Spring Creek like a linked public corridor below Sheridan Lake, not like a random scenic stop between Rapid City and Keystone.
Spring Creek is one of the cleaner Black Hills buildout candidates because the public access, trout-management notes, and live gauge all line up. Start with the RiverReports chart, keep USGS 06407500 near Keystone open, and build the day around the water below Sheridan Lake and the Spring Creek Trailhead instead of guessing at every roadside bend.
- The Black Hills stream-management plan breaks Spring Creek into multiple trout reaches, including stocked bridge-and-access-point sections around Sheridan Lake and a longer wild-trout management section farther upstream.
- Black Hills National Forest says the Spring Creek Trailhead sits below Sheridan Lake along Spring Creek and serves both the Centennial Trail and the Flume Trail, which makes it a strong public starting point.
- The Sheridan Lake Complex page says fly fishing is popular in Spring Creek below the dam, giving the route a clear public-facing access and use signal tied to the lake complex.
- The Spring Creek Picnic Area sits directly beside the creek with day-use access, which helps anchor a practical plan for short half-day sessions rather than vague watershed-wide guessing.
The NWS forecast is near 98F and this page does not have live water temperature. Treat trout and salmonid fishing as unsafe unless a stream thermometer proves otherwise.
USGS shows 0 cfs with a falling about 33% over about 6 hours trend. same-date USGS history (1987-2025, 39 readings) puts normal around 16 cfs and the low-water marker near 1 cfs; today's flow is unusually low for the date. Low water can make fish spooky, warm, pressured, or concentrated; check temperature and handling risk.
Float: A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
Early summer: Good when flows settle and you can fish the below-lake corridor before heavier afternoon use.
No active NWS alert was returned for this forecast point.
Read the water
What changes the plan.
The best Spring Creek days come on stable modest flow when the below-lake current is clear, cool, and low enough to read from the bank. If rain bumps the creek or summer traffic stacks up around the easiest access, shorten the day and fish one verified section carefully.
Stable modest flow
Best for compact nymph rigs, dry-droppers, and careful bank-first coverage below Sheridan Lake.
Cold clear water
Stay off the skyline, lengthen the leader, and fish the first soft lane before stepping in.
Rain bump or stained water
Shrink the plan to the easiest public access and fish only the soft seams and current cushions.
Bright warm afternoons
Start early or late and keep a thermometer handy if the session drifts toward marginal trout temperatures.
Field plan
Fish it with intention.
Use the Keystone gauge with Sheridan Lake corridor context. Stable, cool, clear water is the best signal.
Skip when flow is rising, storms are active, trailhead footing is unsafe, water is warm, or public access and parking are not workable.
Start with the Keystone gauge, then choose Spring Creek Trailhead, Spring Creek Picnic Area, or the Sheridan Lake corridor before picking flies.
Compare Rapid Creek Below Pactola, Castle Creek Below Deerfield, or Spearfish Creek when Spring Creek is high, warm, crowded, or stormy.
Hatches & flies
Bring a flexible box.
Reviewed family · report says “BWO nymph”Blue-Winged Olive PatternsBWO describes a hatch group, not one fly. Nymph, emerger, dry, cripple, and spinner profiles must stay separate because they occupy different parts of the water column.See family guide ↗
Reviewed pattern · report says “zebra midge”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it ↗+ 1 more reviewed guide in the Fly Box
Reviewed family · report says “Soft hackle”Soft-Hackle Wet FliesA slim body and sparse webby feather collar define the family. Body material, tail, bead, and insect-specific color create different named patterns.See family guide ↗
Reviewed pattern · report says “hare's ear”Gold-Ribbed Hare's Ear NymphStart with the material architecture, not brown color alone: a short fibrous tail, tapered rough-dubbed abdomen, open metallic rib, fuller buggy thorax, and dark wing case. A bead, flashback panel, hot spot, soft-hackle collar, jig hook, or dry-fly treatment changes the form and must stay named. The two photographed artificials are bead-head variations; the reviewed Fly Fishers International tying guide below is an unweighted Gold-Ribbed Hare's Ear.See photos & how to fish it ↗+ 1 more reviewed guide in the Fly Box
Reviewed pattern · report says “Elk hair caddis”Elk Hair CaddisLook for a tented elk- or deer-hair wing, clipped hair head, dubbed body, rib, and hackle palmered along the body. The body color should be labeled because tiers often match different natural caddis colors.See photos & how to fish it ↗
Reviewed family · report says “foam ant”Ant PatternsAnt patterns can be foam, fur-bodied, winged, or sunken. The narrow waist and paired body lobes matter more than one material recipe.See family guide ↗+ 2 more reviewed guides in the Fly Box
Reviewed pattern · report says “RS2”RS2Start with the beadless architecture: two dark-dun Microfibett tails separated behind a slim, tightly twisted and visibly segmented dubbed abdomen; a fuller thorax; and saddle-hackle web clipped into a short angled wing bud. Rim Chung's original-style form uses natural beaver dubbing and hackle web. CDC- or Antron-wing ties, beads, curved hooks, flash, and tailless Avatar-style flies must remain labeled variations.See photos & how to fish it ↗
Reviewed pattern · report says “zebra midge”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it ↗+ 1 more reviewed guide in the Fly Box Start at a named public access and fish one corridor thoroughly before moving the truck.
Below Sheridan Lake, fish the first soft seams and shaded banks before wading because the trout can be close to shore.
If the creek is higher than expected, stay on the bank and cover obvious slow water instead of forcing crossings.
Treat the easiest public water as the most pressured and make your best presentations there first.
Access & responsibility
Know the entry. Know the exit.
South Dakota trout rules can include Black Hills exceptions. Recheck the 2026 South Dakota Fishing Handbook and current state regulations before fishing Spring Creek.
Spring Creek Trailhead
The clearest first stop below Sheridan Lake, with direct Spring Creek access and connections to the Centennial and Flume trails.
Spring Creek Picnic Area
A practical short-session entry beside the creek when you want a simple public start and daylight exit.
Sheridan Lake below-dam corridor
Useful as the main orientation zone because the Forest Service specifically flags this section as popular for fly fishing.
Transparent sources
Check the facts behind the plan.
Last material review: 2026-06-02
Common questions
Before you leave.
What flow should I check for Spring Creek near Keystone?+
Use RiverReports for the live chart and keep USGS site 06407500 near Keystone open as the official reference.
Where should I start on Spring Creek?+
Start with the Spring Creek Trailhead or the Spring Creek Picnic Area below Sheridan Lake because both are named public access points tied directly to the creek.
Is Spring Creek mostly a wade fishery?+
Yes. The useful plan is a road-and-trail wade day built around the below-Sheridan Lake public corridor, not a float trip.