Every number on a GuidedFloats water page comes from a source we can name. This page lists them, their licenses, and how often we refresh. Attribution here satisfies the terms of each source; if you find an error, tell us at hello@guidedfloats.com.
| Data | Source | License | Refresh |
|---|---|---|---|
| Discharge, gauge height, water temperature | U.S. Geological Survey, National Water Information System (waterservices.usgs.gov) | U.S. federal public domain. Provisional data subject to revision. | Every 15 minutes |
| Flow percentile | Computed by GuidedFloats from USGS daily statistics (p10, p25, p50, p75, p90) for the calendar day at each gauge | Derived from public domain data | Statistics fetched once per gauge, refreshed yearly |
| Waterway names and locations | USGS Geographic Names Information System and National Hydrography Dataset | U.S. federal public domain | On import |
| Weather forecast | National Weather Service API (api.weather.gov) | U.S. federal public domain | Hourly (when enabled) |
| Maps | OpenStreetMap contributors | ODbL. Tiles used under the OpenStreetMap tile usage policy. | Live |
| Species | Editorial, informed by USGS native range and state agency species lists | Public domain sources; editorial text is ours | Editorial |
| Angler recognition programs | Each organizer’s public program page (state fish and wildlife agencies, Trout Unlimited, IGFA, and others) | Facts collected and summarized by GuidedFloats; each entry links to the official page | Reviewed yearly |
| Guide and outfitter profiles (unclaimed) | State licensing registries, federal permit holder lists, state tourism listings, and the business’s own website | Public records and business-published contact details only. Each profile shows its source. | Re-verified each license cycle |
What we do not do
We never restate fishing regulations; we link to the agency page and date the link. We do not use logos of USGS, NOAA, or any agency, and nothing here implies an agency endorses GuidedFloats. We do not copy text or photos from other websites.