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Image No: NA-4538-1
Title: Fish killed from pesticides, Chatwin Lake, near Bonnyville, Alberta.
Date: September, 1962
Remarks: Copied from PA-2463.
Subject(s): Chatwin Lake, Alberta / Fishes - Effect of water pollution on / Pesticides / Pollution
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Image No: NA-4538-2
Title: Oil pollution on Sheep River near Turner Valley, Alberta.
Date: [ca. 1970s]
Remarks: Copied from PA-2463.
Subject(s): Oil pollution of rivers, harbours, etc. / Petroleum industry and trade - Environmental aspects / Pollution / Sheep River, Alberta
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Image No: NA-4538-3
Title: Effluent discharged into Bow River from Bonnybrook sewage treatment plant, Calgary, Alberta.
Date: [ca. 1970s]
Remarks: High in phosphates. Copied from PA-2463.
Subject(s): Bow River, Calgary, Alberta / Calgary, Alberta - Water-supply / Water - Pollution
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Image No: NA-4538-4
Title: Gas plant north of airport, Calgary, Alberta.
Date: [ca. 1970s]
Remarks: Copied from PA-2463.
Subject(s): Calgary, Alberta - Industry / Natural gas
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Image No: NA-4538-5
Title: Cattle at the Burns feed lot, Calgary, Alberta.
Date: [ca. 1970s]
Remarks: Copied from PA-2463.
Subject(s): Calgary, Alberta - Industry / Livestock
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Image No: NA-4538-6
Title: Grasshopper invasion near Chestermere Lake, Alberta.
Date: [ca. 1970s]
Remarks: Copied from PA-2463.
Subject(s): Grasshoppers
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Image No: NA-4538-7
Title: Caterpillars, southern Alberta.
Date: [ca. 1970s]
Remarks: Copied from PA-2463.
Subject(s): Caterpillars
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Image No: NA-4538-8
Title: Tree planting to prevent soil drifting, Drumheller area, Alberta.
Date: [ca. 1970s]
Remarks: Copied from PA-2463.
Subject(s): Drumheller area, Alberta / Soil conservation / Tree planting
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