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Interrogation Site Metadata

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GCM - Grouse Creek Mouth

Status:   Active - Non-Operational
Site Type: Instream Remote Detection System  |  Organization: Nez Perce Tribe
General Operational Period: Seasonally
Start Date: 3/18/2020 12:00 AM

The Grouse Creek Mouth (GCM) interrogation site consists of a tandem array in-stream detection system located in the Grouse Creek in the Imnaha River basin approximately 25m upstream from the confluence with the Imnaha River. The array is under the Grouse Creek bridge on the upper Imnaha River road with all components located on the county road right of way. Each antenna spans the width of the creek under the bridge. Stream side components include two stand alone Biomark IS1001 readers and a battery box on the western upstream side of the bridge. GCM was installed March 2020 and began collecting data on March 18, 2020 and is expected to operate during adult steelhead returns, March - June. Power is from batteries that are manually changed out weekly. Data are downloaded manually.

Current Operations

Last File Loaded: GCM-2021-145-P-00A.xml
Date Last File Loaded: 8/11/2021 4:11 PM
Date Last File Opened: 5/25/2021 12:12 AM
Date Last File Closed: 5/31/2021 11:22 PM
Last Observation Tag: 3DD.00779445CF
Last Observation Date: 6/14/2021 11:47 PM
Detection Summary: Last Day's Observations


Primary Contact:

Neal Espinosa

Data Steward:

Jim Harbeck


Coordinates: 45.328017, -116.806641  |  River Km: 522.308.066.000

Operational History

Operational history describes the period the site was interrogating for PIT tags. The comments provide anecdotal information about the operation of the site during this period. Site operational periods are updated typically at the end of the calendar year.

Year Start Date End Date Comments
2020 3/18/2020 12:00 AM 6/19/2020 12:00 AM Start and end dates based on timer tags. See event logs for additional operational information.


Configuration metadata includes details about the equipment used at the site to detect and record PIT tags. A new configuration sequence record is created when equipment is added or removed from the site and the period of time it was active. A configuration sequence without an End Date is currently active.

Select Configuration Number:
Start Date:  3/18/2020
End Date:  ----

Site Configuration Diagrams:

Equipment History

Select a type to view the history of equipment installed at this site. A missing End Date implies the information about the equipment is current.

Select Equipment Type:
Equipment Code Description Start Date End Date

No Photos

Event Log Summary

Event Date Event Type Comments
6/15/2021 10:57:00 AM SiteDown

GCM is offline for the adult steelhead season.

3/31/2021 2:07:00 PM SiteUp The site is up and running with power issues resolved.
3/24/2021 1:05:00 PM SiteDown The site is offline with power issues.
3/21/2021 1:28:00 PM SiteUp The site is up and running.
6/18/2020 9:16:00 AM SiteDown Site powered down for the adult steelhead season.
6/12/2020 10:15:00 AM SiteUp Site up and running, power issues resolved.
6/10/2020 12:25:00 AM SiteDown Site down due to power issues.
3/18/2020 5:32:00 PM SiteUp Grouse Creek Mouth array up and running for adult steelhead migration.

No Archived Event Logs