The right fly for the water you're standing in — built by an angler tired of guessing.
← Back to the appFind a Fly is a free, independent tool that helps anglers pick the right fly for any trout water in the U.S. — matched to your river, the season, and what the water is actually doing right now.
Most “what fly should I use?” answers are either a generic hatch chart taped to a shop wall or a flat-out guess. Find a Fly stacks five independent data layers into every recommendation, so the pick reflects your exact water and day rather than a season-wide average:
River-specific hatch charts and regional biome models score what's emerging on your date.
Real-time USGS flow & temperature from the nearest gauge, versus the seasonal normal.
The National Weather Service forecast for your trip day nudges the picks up or down.
Recent, dated reports boost the flies people are actually catching fish on.
Live state & federal GIS layers map real trout streams across roughly 45 states.
Find a Fly isn't affiliated with any fly shop, brand, or government agency. The recommendations are the whole point, so they're never for sale — a commission never decides the top fly. Local-secret and report content is paraphrased from real, dated shop posts, stale intel is dropped rather than shown as current, and every fly photo links back to a real seller with credit.
It's a labor of love from an angler who'd rather spend the day fishing than standing in the current second-guessing the fly box. If it helps you have a better day on the water, it's doing its job. Questions, corrections, or shop and guide partnership ideas are always welcome — reach out anytime at ottercreekanglers@gmail.com.
🎣 Find your fly →Find a Fly participates in affiliate programs, including the Amazon Associates Program and AvantLink. If you use a “Buy this fly” or gear link and make a purchase, we may earn a small commission at no additional cost to you; as an Amazon Associate we earn from qualifying purchases. These affiliate relationships do not influence our recommendations — flies are chosen by hatch timing, live water conditions, and local shop reports, never by commission. Prices and availability shown on a seller's site are set by that seller, not by Find a Fly.
Find a Fly requires no account and collects no personal information. Any fly ratings and angler notes you add are stored only in your own web browser (local storage); they are not transmitted to us or shared with anyone. The app loads live data from third-party services — USGS Water Services, state and federal GIS map servers, and a public weather-forecast API — and map tiles from OpenStreetMap and USGS; those providers may record requests under their own privacy policies. If you click an affiliate or seller link, that network or store may set its own cookies to credit the referral. If advertising is added later, ad partners may use cookies, and this policy will be updated. Questions or data requests: ottercreekanglers@gmail.com.
📧 Contact: ottercreekanglers@gmail.com · ← Back to the app
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