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Logan High School environmental science and biology teacher Hans Doderer, center, and two students release a bag full of trout at Buffalo Creek on Wednesday, May 5.
DYLAN VIDOVICH | Logan Banner
Logan High School environmental science and biology teacher Hans Doderer instructs students during a field trip to Buffalo Creek on Wednesday, May 5.
DYLAN VIDOVICH | Logan Banner
Logan High School environmental science and biology teacher Hans Doderer demonstrates how to use a pH testing device during a field trip to Buffalo Creek on Wednesday, May 5.
DYLAN VIDOVICH | Logan Banner
Logan High School environmental science and biology teacher Hans Doderer demonstrates how to use a pH testing device during a field trip to Buffalo Creek on Wednesday, May 5.