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This layer shows fish trap facilities in the Columbia River basin. These facilities are used to capture adult or juvenile fish for research or fish management. Subtypes included in this dataset are: fish collection facility, hatchery ladder/trap, screw trap, weir trap, and other trap. Definition query applied to Columbia Basin Fish Facilities dataset: ( FacSubType = screw trap OR FacSubType= weir trap OR FacSubType=fish collection facility OR FacSubType= other trap OR FacSubType= hatchery ladder/trap) AND FacStatus = open AND ColumbiaBasin=1 |