The Upper Columbia United Tribes maintain a network of acoustic telemetry receivers throughout the Upper Columbia River Basin. These receivers detect uniquely coded acoustic transmitters that are implanted in juvenile salmon as part of the P2IP salmon reintroduction.
When tagged fish pass within detection range of a receiver, the receiver records the transmitter ID and time of detection. These detections allow researchers to reconstruct migration pathways, estimate travel times, and evaluate survival across river reaches.
Because receivers are routinely deployed, serviced, replaced, and upgraded throughout the field season, maintaining an accurate spatial inventory of receiver locations and associated equipment metadata is critical for both field operations and data management.
This report provides a spatial overview of the receiver network and summarizes receiver status and metadata.
Total Monitoring Sites
Active Sites
Inactive Sites
Maintenance Required
Total Receivers Deployed
| Water Body | Deployed Receivers |
|---|---|
| Columbia River | 42 |
| Banks Canal | 2 |
| Spokane River | 2 |
| Message |
|---|
| No sites currently have multiple receivers deployed. |
The interactive map below displays acoustic receiver locations maintained by the Upper Columbia United Tribes throughout the Upper Columbia River Basin.
Receiver markers are color-coded according to operational status. Users may zoom, pan, and interact with individual receiver locations to view associated metadata including receiver model, serial number, deployment information, and associated beacon identifiers.
As of March 16, 2026, the Upper Columbia acoustic receiver network includes 59 monitoring sites across the basin.
Of these, 46 sites currently have operational receivers, while 13 sites do not currently have a receiver deployed.
Across all monitoring locations, 46 acoustic receivers are currently deployed, with 0 receivers flagged as requiring maintenance or servicing.