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Use the live sources and what you see at the river before choosing an approach.
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Fly fishing report · West
South Platte River 11-Mile Canyon
An Eleven Mile Canyon South Platte report for the tailwater below Eleven Mile Reservoir, with flow checks, access fees, hatches, flies, and special rules.
Check flow & weatherToday's fishing decisionSome live data available
64
Use caution
Verify conditions before committing.
RiverReports is linked for the flow chart, but this page does not have a structured live flow value the score can read automatically. Treat the rating as conservative and open the chart before committing.
Best supported approachCheck the water first
Watch nextFlow: RiverReports is linked for the flow chart, but this page does not have a structured live flow value the score can read automatically. Treat the rating as conservative and open the chart before committing.
Updated Aug 3, 1:23 AM UTCCurrent conditions checked regularly
Before choosing how to fishCheck the water first
There is not enough reliable current information to recommend wading, bank fishing, or floating.
Check before you drive
Current flow and weather.
Look at whether the river is rising or falling, then check wind, rain, and storms. These can change both safety and fishing.
Loading current flow and weather.
Before you rely on this report
How current is this report?
Conditions can change quickly. Check these dates before you decide to fish, and open the official source when safety or rules matter.
- River conditions
- Checked Aug 2, 2026, 9:23 PM
- Fishing guidance
- Reviewed May 31, 2026
- Public access
- 1 public access point checked
- Rules and closures
- Official rule links checked
Medium confidence in the current score inputs.
6 sources are listed below for you to open.
3 public access records are listed. Private spots are never shown.
Source checked Jul 30, 2026
Plan your access
Know where you can enter.
These are public parking, launch, trail, or recreation areas—not secret fishing spots. We never show an angler's private pins, notes, or photos here.
- 1
- Shown on map
- 2
- No map pin
Location checkedDescription only
01Agency map location
Day use
Idlewild Picnic Area
A signed Forest Service day-use site near the upper end of Eleven Mile Canyon with parking, tables, and toilets.
Restrictions and seasonal notes
The Forest Service lists a vehicle day-use fee for Eleven Mile Canyon.
No potable water is available, and dogs must follow current leash rules.
The site is listed as year-round but weather dependent; winter road and ice conditions can limit practical access.
02No map pin
Area description
Wagon Tongue and Springer Gulch area
Important regulation-boundary and access context for the below-dam tailwater.
Restrictions and seasonal notes
USFS lists an Eleven Mile Canyon vehicle day-use fee and no dispersed camping in the canyon.
Dogs must be leashed under USFS recreation guidance.
03No map pin
Parking
Cove, Spillway, and canyon pullouts
Common named canyon access areas where parking, pressure, and posted rules matter.
Restrictions and seasonal notes
USFS lists an Eleven Mile Canyon vehicle day-use fee and no dispersed camping in the canyon.
Dogs must be leashed under USFS recreation guidance.
How to fish it
Fish it as a technical canyon tailwater.
Eleven Mile Canyon is a distinct South Platte plan below Eleven Mile Reservoir. The river is accessible, productive, and heavily used, so current flow, rules, and etiquette matter.
- Use RiverReports and the Colorado DWR PLAGEOCO station for current flow context.
- USFS manages Eleven Mile Canyon as a fee recreation area with designated use rules.
- CPW identifies the river as a year-round catch-and-release tailwater with brown, rainbow, and cutbow trout.
- Expect small flies, careful presentations, and other anglers in the best pools.
Why the score looks this way
FlowUse caution
RiverReports is linked for the flow chart, but this page does not have a structured live flow value the score can read automatically. Treat the rating as conservative and open the chart before committing.
SeasonHelps score
Summer: PMDs, caddis, tricos, and terrestrials can work, especially in low light.
WeatherHelps score
The NWS forecast is about 81F with Mostly Cloudy.
Public alertsHelps score
No active NWS alert was returned for this forecast point.
Fishing usefulnessHelps score
Skip the canyon when fee-area access, parking, or current rules are unclear, when flows make safe wading unrealistic, when ice or storms make the canyon hazardous, or when crowding would force you into poor etiquette or unsafe water.
Read the water
What changes the plan.
Eleven Mile fishes best when releases are stable and the canyon road and weather are manageable. Slow down, fish small flies well, and respect the tight access corridor.
Low clear release
Use fine tippet, small flies, and long leaders. Approach pools carefully.
Stable medium release
Nymph riffles, pockets, and seams; watch for short dry windows.
Higher release
Add weight, fish soft edges, and avoid crossing where the canyon current is pushy.
Winter
Midges can fish, but ice, narrow roads, and cold canyon shade raise the safety bar.
Your trip plan
Know when to go—and when to skip it.
Best flows
Use the RiverReports Eleven Mile chart and Colorado DWR Lake George station together. Stable releases are the most useful signal for small flies and sight fishing; sharp release changes or pushy water should keep you on edges or send you to another South Platte option.
When to skip
Skip the canyon when fee-area access, parking, or current rules are unclear, when flows make safe wading unrealistic, when ice or storms make the canyon hazardous, or when crowding would force you into poor etiquette or unsafe water.
Local plan
Choose the canyon plan before tying on flies: lower pullouts for quick technical checks, quieter mid-canyon water when parking allows, or a pivot to nearby South Park water if flows, weather, or people stack against the day.
Backup water
If Eleven Mile Canyon is too crowded, icy, or release-sensitive, compare the broader South Platte River, Middle Fork of the South Platte, or Tarryall Creek after checking current flow, access, and regulation details.
Hatches & flies
Bring a flexible box.
TimingWhat to watchUseful flies
WinterMidges and tiny olivesZebra midge, black beauty, top secret midge, RS2
Fly pattern · report suggests “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 ↗
Fly pattern · report suggests “black beauty”Black Beauty MidgeA very slim black thread body, fine silver rib, and small dark thorax define the core Black Beauty. Glass-bead Mercury Black Beauty and flash-wing variants must stay labeled separately.See photos & how to fish it ↗+ 2 more reviewed guides in the Fly Box SpringBWOs, midges, caddisBWO emerger, juju baetis, caddis pupa, mercury midge
Fly family · report suggests “BWO emerger”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 ↗
Fly pattern · report suggests “juju baetis”Juju BaetisA narrow segmented body, dark wing case, compact thorax, and sparse tail define the Juju Baetis. Bead, color, and flash choices are meaningful variants.See photos & how to fish it ↗+ 2 more reviewed guides in the Fly Box SummerPMDs, tricos, caddis, terrestrialsPMD, trico spinner, elk hair caddis, ant, beetle
Fly family · report suggests “PMD”Pale Morning Dun PatternsPMD names an insect group, not one fly. Pale nymphs, trailing-shuck emergers, upright or low-riding duns, cripples, and spent-wing spinners stay visibly separate.See family guide ↗
Fly pattern · report suggests “trico spinner”Trico SpinnerThe reviewed dry form is extremely sparse and flat, using a black body or thread head and pale spent wing. A weighted Sunken Trico Spinner is a separate variant.See photos & how to fish it ↗+ 3 more reviewed guides in the Fly Box FallBWOs, midges, October caddisBWO dry, zebra midge, October caddis, small streamer
Fly family · report suggests “BWO dry”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 ↗Fly pattern · report suggests “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 ↗+ 2 more reviewed guides in the Fly Box 01
Arrive with a backup parking plan because canyon pullouts fill quickly.
02
Use light tippet and precise depth control before changing through a dozen flies.
03
Fish the tailout and near edge before stepping into the pool.
04
Keep dogs leashed and follow USFS day-use rules.
05
Respect other anglers in the narrow canyon corridor.
Rules & closures
Check the official rules before you go.
Open the agency page to confirm the exact river section, species, season, tackle rules, limits, and emergency closures.
Official links checkedRules for this river or sectionSpecial rule found
Tackle restriction
Eleven Mile Dam to Wagon Tongue Gulch Road bridge
Fishing is by artificial flies and lures only, and every fish must be returned to the water immediately in this 3.8-mile canyon reach.
Rules checkedJul 30, 2026
Report a correction ↗Always follow the official rule
This summary helps with trip planning. The linked agency rule is the one you must follow.
Updates from anglers
What anglers are seeing.
Recent observations from general areas of South Platte River 11-Mile Canyon. We review every update before it appears and never publish exact fishing spots, private access details, or photo locations.
Angler updates are not loading right now.
You can still use the river plan above. Check back later for recent observations from other anglers.
Where this report comes from
Open the sources we checked.
Fishing guidance checked: May 31, 2026
Site check: Jul 14, 2026. We regularly test report links, live scores, flow and weather data, and page loading. The content date changes only when the fishing guidance or its sources change.
flowRiverReports: South Platte at Eleven Mile CanyonflowColorado DWR station: South Platte near Lake GeorgeaccessUSFS Eleven Mile Canyon Recreation AreabackgroundColorado Parks and Wildlife South Platte RiverregulationColorado fishing special regulationssafetyNational Weather Service forecast point near Eleven Mile Canyon
Common questions
Before you leave.
Is Eleven Mile Canyon the same as Deckers?+
No. It is a separate South Platte tailwater below Eleven Mile Reservoir near Lake George.
What flow should I check?+
Use RiverReports and the Colorado DWR PLAGEOCO station for canyon release context.
Are there fees?+
USFS lists a vehicle day-use fee for Eleven Mile Canyon. Check current fee and pass details before entering.
What flies should I bring?+
Bring midges, RS2s, BWOs, PMDs, tricos, caddis, small terrestrials, and small streamers.