Greg McMillan peered into the Metolius River on a chilly May morning. As he does three times a month, the president of the Deschutes River Alliance dropped a water collection device off the side of his powerboat.
“The water clarity here is just amazing,” McMillan said as he retrieved a sample.
He measured temperature, pH and turbidity of the river water. Meanwhile, an osprey flew overhead, clutching a small fish in its talons. Every few minutes, a silvery kokanee flung itself above the surface of the river.