⚡ Lightning Alerts — Enable GPS for real-time proximity warnings while you're on the water.
🔔 Get notified when lightning enters 10 miles of your current location.
⚠️ Flow data is from USGS and is provided for informational purposes only. Conditions change rapidly. Raw numbers and trend only — PeakScout never evaluates safety. Verify all information before entering water.
🚧 Dam Safety Warnings Full report →
🌊 Dillon Dam release — elevated flows on Blue River / Snake River Expect water levels to remain elevated for 12–24h below Dillon Dam. Check current USGS gauge before entering.
🌊 Ruedi Dam release — elevated flows on Frying Pan River Expect water levels to remain elevated for 12–24h below Ruedi Dam. Check current USGS gauge before entering.
⚠️ LOW-HEAD DAM: Cal Gulch Diversion Dam South Platte River — hydraulic keeper hole. Mandatory portage.
⚠️ LOW-HEAD DAM: Globeville Diversion Dam South Platte River — hydraulic keeper hole. Mandatory portage.
⚠️ LOW-HEAD DAM: Windsor Diversion Dam Cache la Poudre River — hydraulic keeper hole. Mandatory portage.
9 waters in CO
Updated 5:51 PM UTC

South Platte River — Deckers

🥇 Gold Medal🎗️ Blue Ribbon
📍 Deckers, CO river CO
No live data
🎣 Good Conditions USGS gauge →
Brown TroutRainbow Trout

Gold Medal — 322 miles of CO's premier trout water.

Regulations

Artificial flies and lures only. C&R only above Scottland Bridge.

🎟️ Buy License 📋 Full Regs
Access Sites
📍 Wigwam Club Bridge — bank 🅿️
📍 Deckers Campground Pull-off — bank 🅿️

Frying Pan River

🥇 Gold Medal🎗️ Blue Ribbon
📍 Basalt, CO river CO
No live data
51°F — Prime
🚫 Poor Conditions USGS gauge →
Brown TroutRainbow Trout

Gold Medal Tailwater — world-class midge & PMD fishery.

Regulations

Artificial flies and lures only, year-round C&R. Ruedi Dam to Roaring Fork confluence.

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Access Sites
📍 Roaring Fork Confluence — wade_in 🅿️

Blue River below Dillon

🥇 Gold Medal
📍 Silverthorne, CO river CO
No live data
🎣 Good Conditions USGS gauge →
Brown TroutRainbow TroutCutthroat Trout

Gold Medal Tailwater — Summit County gem.

Regulations

Artificial flies and lures only. C&R from Dillon Dam to confluence.

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Arkansas River near Salida

🥇 Gold Medal
📍 Salida, CO river CO
No live data
🎣 Good Conditions USGS gauge →
Brown TroutRainbow Trout

Gold Medal — world-class salmonfly hatch May–Jun.

Regulations

Artificial flies/lures in Gold Medal sections. Bag limits vary by section.

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Gunnison River (Black Canyon)

🥇 Gold Medal🐟 Wild Trout
📍 Gunnison, CO river CO
No live data
🎣 Good Conditions USGS gauge →
Brown TroutRainbow Trout

Gold Medal — Stilling Basin world-class tailwater. Hike-in or raft access.

Regulations

Artificial flies/lures only, 2 fish ≥12". C&R encouraged.

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Roaring Fork River

🎗️ Blue Ribbon
📍 Aspen, CO river CO
No live data
51°F — Prime
⚠️ Fair Conditions USGS gauge →
Brown TroutRainbow TroutBrook Trout

Blue Ribbon — Aspen to Glenwood Canyon corridor.

Regulations

General regulations; some wild-trout sections have reduced bag limits.

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Taylor River

🥇 Gold Medal🐟 Wild Trout
📍 Almont, CO river CO
No live data
46°F — Prime
⚠️ Fair Conditions USGS gauge →
Brown TroutRainbow Trout

Gold Medal — trophy brown trout below Taylor Reservoir.

Regulations

Artificial flies/lures only in Gold Medal section. C&R only from dam to Almont.

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Cache La Poudre River

🎗️ Blue Ribbon🐟 Wild Trout
📍 Fort Collins, CO river CO
No live data
🎣 Good Conditions USGS gauge →
Brown TroutRainbow TroutCutthroat Trout

Colorado Wild & Scenic Corridor — Front Range classic.

Regulations

Colorado's only Wild & Scenic river. Varies by section.

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Eleven Mile Reservoir

🥇 Gold Medal
📍 Lake George, CO reservoir CO
No live data
🎣 Good Conditions
Rainbow TroutKokanee SalmonNorthern PikeWalleye

Gold Medal — South Park classic with trophy trout and kokanee.

Regulations

Gold Medal — 4 trout/day, only 1 over 20". Kokanee: 10/day. Pike: no limit.

🎟️ Buy License 📋 Full Regs
Access Sites
📍 Stoll Mountain Boat Ramp — boat_ramp ♿ 🅿️
📍 Cove Campground Bank — bank 🅿️

📅 Full-Year Hatch Chart

Insect emergence calendar for Colorado and Rocky Mountain waters. Conditions vary by elevation and year.

InsectJanFebMarAprMayJunJulAugSepOctNovDecPattern
🪰 Midges ●●●●●●●●●●●● Zebra Midge #20-24, Griffith's Gnat
🦋 Blue-Wing Olive (BWO) ●●●●●● Parachute Adams #18-22, RS2
🌤️ Pale Morning Dun (PMD) ●●●● PMD Sparkle Dun #16-18, Comparadun
🦗 Salmonfly ●● Chernobyl Ant, Circus Peanut #4-8
🟡 Golden Stonefly ●● Yellow Stimulator #8-12, Copper John
🦟 Caddis ●●●●● Elk Hair Caddis #14-18, X-Caddis
🌅 Trico ●● Trico Spinner #20-24
🦗 Terrestrials (Hoppers/Ants) ●●● Chernobyl Ant, Parachute Hopper
🔆 Hexagenia Mayfly ●●● Hex Spinner #6-8

🎽 Gear Up

🎣 Orvis

Fly rods, waders, and fly-fishing essentials from the gold standard brand.

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🧥 Simms Fishing

Technical waders and outerwear built for serious anglers in all conditions.

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📜 Get Your License

Quick links to state fishing license portals. Requirements vary by state and season.

CO License →
📡 Radar Data Radar data aggregated from RainViewer, NOAA NEXRAD/MRMS, and GOES satellite imagery. Data may be delayed up to 15 minutes and is provided for general situational awareness only. Do not rely solely on this tool for safety decisions. Always check official National Weather Service forecasts before heading out.
⚡ Lightning Proximity Alerts Lightning detection is approximate and may not reflect real-time conditions. Strike data is sourced from public detection networks and is subject to coverage gaps and latency. Always follow local safety guidelines — when thunder roars, go indoors. Do not rely on proximity alerts as your sole indicator of lightning risk.
📍 Location & Privacy Your location is used only to center radar data and is not stored or shared. Location access is requested in-browser and never transmitted to our servers.
⚠️ Limitation of Liability PeakScout is not responsible for injuries, damages, or losses resulting from reliance on weather radar, lightning proximity data, river flows, or any other information presented on this page. Outdoor conditions are inherently unpredictable. All data is informational only. By using this site you agree to our Terms of Service.