Cutty: Fly Fishing & Fly Tying

Know what the river's doing before you drive to it. Cutty pairs real-time USGS flow and water temp with hatch charts, fly patterns that match the bug, and the public access to reach the water.

※ Stream Intelligence

• Real-time flow and water temperature from USGS gauges
• Daily flow and temperature history, a week back and further
• NOAA weather — wind, cloud cover, barometric pressure, forecast
• NOAA tide stations for the coast and estuary

※ Hatches & Entomology

• Species-level hatch timing for mayflies, caddis, stoneflies, midges, and terrestrials
• Emergence predictions from local water temperature and degree-day accumulation
• Reference pages for every organism — life cycle, habitat, distribution, flies that imitate it
• Hand-curated hatch data on named waters including Penns, Letort, Firehole, Beaverhead, Frying Pan, Gallatin, Green River, Lehigh, and Esopus

※ Fly Patterns & Tying

• Pattern pages include full recipes — hook, thread, body, hackle, wing, dubbing, tying notes
• Coverage across trout, bass, steelhead, salmon, and saltwater
• Patterns linked to the bugs they imitate, so matching the hatch is one tap

※ The Map

• Every named water we could find, drawn over USGS flowlines
• Public land boundaries — BLM, USFS, National Parks, state wildlife areas
• Fly shops with hours, phone, and directions
• Federal campgrounds, trailheads, and boat launches from Recreation.gov
• State-by-state fishing access points, boat launches, and parking
• Waypoints for the runs, holes, and put-ins you want to remember

※ Fishing Guides

• Directory of guides by state and water
• Trip types, rates, and direct contact

※ Offline Maps

• Save regions for when you're out of service
• Map tiles, water bodies, and access points travel with you

※ Data Sources Cutty surfaces public data from USGS, NOAA, the National Hydrography Dataset, PAD-US public land boundaries, Recreation.gov, and state wildlife agencies. Tap any value and the source is one link away. Cutty is not affiliated with or endorsed by any government agency; .gov links point to public data sources for reference.

• https://waterdata.usgs.gov
• https://www.weather.gov
• https://www.recreation.gov
• https://nhd.usgs.gov

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