• Salvinia in Colorado River
• Booms holding back Salvinia in Colorado River photos
• Dike along 3 Fingers Lake in old Colorado River bed
• Booms holding back Salvinia in Colorado River photos
• Salivinia and other material caught by booms
• Close-up of booms holding back Salvinia near Walter's Camp
• Typha caught by boom, with Walter's Camp in background
• Salvinia and Typha (cattails) caught by boom
• Close-up
• Dike to Three Fingers Lake along Palo Verde Irrigation Drain

Photos by Willima Solomon, US Bureau of Reclamation

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