Recent flow
RiverReports gauge

Showing the available RiverReports chart while the current structured flow series loads. Check the chart on RiverReports Opens in a new tab.
Generated artwork: BlueStreamFly · Regional illustration; not the exact location.
No single best way to fish. Wading, Bank fishing, and Floating have the same top score. Use current access, footing, weather, and local rules to choose.
Check first: Water temperature is unconfirmed. Use a stream thermometer before fishing.
Rating updatedRiver local time:
USGS shows 0 cfs. Recent readings do not show a clear trend. USGS marks this reading provisional and may revise it. USGS records for this date (1987-2025, 39 readings) show a median near 3 cfs and a low-water marker near 0 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.
NWS air forecast near
This is an air forecast, not a river-temperature reading. Check the water with a stream thermometer before fishing in hot weather.
RiverReports gauge

Showing the available RiverReports chart while the current structured flow series loads. Check the chart on RiverReports Opens in a new tab.
Slight Chance Rain Showers
The National Weather Service forecast is temporarily unavailable.
RiverReports gauge: Spring Creek near Keystone
Seasonal starting points, not a live hatch report. Match what you see on the water.
Each fly name opens its matching Fly Box guide.
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.
Best for compact nymph rigs, dry-droppers, and careful bank-first coverage below Sheridan Lake.
Stay off the skyline, lengthen the leader, and fish the first soft lane before stepping in.
Shrink the plan to the easiest public access and fish only the soft seams and current cushions.
Start early or late and keep a thermometer handy if the session drifts toward marginal trout temperatures.
Wading, Bank fishing, and Floating have the same top score. Use current access, footing, weather, and local rules to choose.
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.
A float is in play where this report supports boat access and wind, releases, and shuttle logistics are manageable.
Is Spring Creek worth the trip today? Check flow, weather, hatches, access, and rules for South Dakota before you go.
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.
USGS shows 0 cfs. Recent readings do not show a clear trend. USGS marks this reading provisional and may revise it. USGS records for this date (1987-2025, 39 readings) show a median near 3 cfs and a low-water marker near 0 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.
Wade: Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Fall: A strong planning window for cleaner water, lighter pressure, and better brown-trout intent.
The current NWS air forecast is about 51F, and the next 24-hour high reaches about 67F. Slight Chance Rain Showers.
No active NWS alert was returned for this forecast point.
Use the Keystone gauge with Sheridan Lake area 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 area before picking flies.
Compare Rapid Creek Below Pactola, Castle Creek Below Deerfield, or Spearfish Creek when Spring Creek is high, warm, crowded, or stormy.
Use these places as starting points. Open the access link below and check posted signs before you park or enter.
South Dakota trout rules can include Black Hills exceptions. Recheck the 2026 South Dakota Fishing Handbook and current state rules before fishing Spring Creek.
The clearest first stop below Sheridan Lake, with direct Spring Creek access and connections to the Centennial and Flume trails.
A practical short-session entry beside the creek when you want a simple public start and daylight exit.
Useful as the main orientation zone because the Forest Service specifically flags this section as popular for fly fishing.
Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.
Check what is allowed, where the rule applies, and whether the river is open.
Check the latest river reading and forecast before you leave.
Check public entry points, land rules, and seasonal access changes.
Use these links for stocking, safety, and other local details.
Check what is allowed, where the rule applies, and whether the river is open.
Open the current rules and check the river section, season, and special limits.
Check the latest river reading and forecast before you leave.
Open this page and check the latest safety advice before your trip.
Open this river reading to check the latest level, flow, and update time.
Open this river reading to check the latest level, flow, and update time.
Check public entry points, land rules, and seasonal access changes.
Open the land or access page, then check signs before you park or enter.
Open the land or access page, then check signs before you park or enter.
Open the land or access page, then check signs before you park or enter.
Use these links for stocking, safety, and other local details.
Open this page for more river information and check when it was last updated.
What was checked: This report starts with official regulation, access, flow, weather, and public-land sources, then adds practical planning guidance for fly anglers.
Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.
First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.
Use RiverReports for the live chart and keep USGS site 06407500 near Keystone open as the official reference.
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.
Yes. The useful plan is a road-and-trail wade day built around the below-Sheridan Lake public area, not a float trip.