Site Type

Site Name


GLC - Gold Creek, Methow River

GLC is a permanent instream PIT tag interrogation site at RKM 0.18 of Gold Creek in the Methow River basin. From Jan. 2009 until Oct. 2015, the site consisted of 3 rows of antennas and was powered by a FS1001M transceiver. The site currently consists of two rows of antennas, with each row spanning the wetted width of the channel during base flows. Each row consists of two 10-foot PVC antennas, installed in flat-plate configuration. Each antenna is powered by a Biomark IS1001 (ACN) and the ACNs are connected to a Biomark IS1001-MC (MTS). The antennas were built and installed by WDFW. The site is connected to grid power to charge the battery bank powering the detection system. GLC has remote communication abilities provided by a cellular modem and Campbell Scientific CR1000 datalogger. A submersible pressure transducer and temperature probe sensors are also installed to provide environmental condition data collection.

Operated by:


First year:


Last year:




Site Contacts


David Grundy
(509) 997-0048


Brett Kokes
(509) 997-0048


Photo Gallery

Operational Dates

Year Start Date End Date Notes
2014 1/1/2014 1/1/2015
2015 1/1/2015 1/1/2016 Antennas periodically lost current and the site was reconfigured in October 2015 to remove the Mux and existing antennas and replace them with IS1001-MC and new antennas.
2016 1/1/2016 1/1/2017 Start and end dates based on timer tags.
2017 1/1/2017 1/1/2018 Start and end dates based on timer tags.
2009 1/1/2009 1/1/2010 First year of operation under this site code. Previously part of the MRB site definition.
2010 1/1/2010 1/1/2011 Antennas 5&6 were consolidated into a single antenna #5 on Sept. 23.
2011 1/1/2011 1/1/2012 Antenna 2 was the only antenna operating from May 15-September 1, when antennas 1 and 4 were reinstalled. All five antennas were operational as of October 3, when antennas 3 and 5 were reinstalled.
2012 1/1/2012 1/1/2013
2013 1/1/2013 1/1/2014 Site down July 7-12, August 16-23, August 29-September 3, December 3-13. Antenna E3 down April 28 for the remainder of the year. Antenna E4 down May 7-17, but had low current when it was operational. Antenna E4 down August 13 for the remainder of the year. Antenna E5 down May 7-August 13.
2018 1/1/2018 1/1/2019 Start and end dates based on timer tags.
2019 1/1/2019 12/31/2019 Start and end dates based on timer tags.

Current and Historic Site Configurations

Config Seq: 120

Start Date: 10/15/2015

End Date:

Config Seq: 110

Start Date: 9/23/2010

End Date: 10/15/2015

Config Seq: 100

Start Date: 1/1/2009

End Date: 9/23/2010

Event Logs