> ## Documentation Index
> Fetch the complete documentation index at: https://help.ondeckapps.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Data Sources & Attributions

> Where Rivr's data comes from, and the credit each source requires.

Rivr is independent. It isn't affiliated with, endorsed by, or sponsored by any of these organizations.

| Source                                                | What Rivr uses                                          | Terms                                                                                                               |
| ----------------------------------------------------- | ------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- |
| Apple Weather                                         | Current weather and forecasts                           | [Apple Weather data sources](https://developer.apple.com/weatherkit/data-source-attribution/)                       |
| U.S. Geological Survey (USGS) — Water Data APIs, NWIS | Streamflow, stage, water temperature                    | [USGS data licensing](https://www.usgs.gov/data-management/data-licensing) (public domain; credit requested)        |
| USGS NLDI / NHDPlus                                   | River network and gauge relationships                   | [NLDI](https://api.water.usgs.gov/nldi/)                                                                            |
| USGS National Map — Watershed Boundary Dataset        | Matches a location to its watershed for species lookups | [Watershed Boundary Dataset](https://www.usgs.gov/national-hydrography/watershed-boundary-dataset)                  |
| USGS Aquatic Gap Analysis Project                     | Modeled fish distribution                               | [doi:10.5066/P1UV25FW](https://doi.org/10.5066/P1UV25FW)                                                            |
| USGS Nonindigenous Aquatic Species                    | Species occurrence                                      | [nas.er.usgs.gov](https://nas.er.usgs.gov)                                                                          |
| U.S. Army Corps of Engineers — CWMS and water portals | Dam releases and lake levels                            | [water.usace.army.mil](https://water.usace.army.mil/help)                                                           |
| Tennessee Valley Authority                            | Dam releases and lake levels                            | [tva.com](https://www.tva.com)                                                                                      |
| Southwestern Power Administration                     | Dam generation schedules                                | [energy.gov/swpa](https://www.energy.gov/swpa)                                                                      |
| State fish and wildlife agencies                      | Fishing regulations and stocking                        | Each agency's published terms; linked from every regulation in the app                                              |
| iNaturalist                                           | Species observations                                    | [iNaturalist terms](https://www.inaturalist.org/terms); individual observations are under their observers' licenses |
| GBIF                                                  | Species occurrence records                              | [GBIF data licences](https://www.gbif.org/terms/licences) (CC0 / CC BY / CC BY-NC)                                  |
| OpenStreetMap                                         | River course geometry                                   | © OpenStreetMap contributors, [ODbL](https://www.openstreetmap.org/copyright)                                       |
| U.S. Census Bureau Geocoder                           | Matching a location to its state agency                 | This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.                 |
| Apple Maps                                            | Maps                                                    | Shown on the map itself                                                                                             |