Fisheries technicians wade into the Tuolumne River to check a rotary “screw-trap” as they count salmon migrating down the river to the Bay and beyond.
Fisheries technicians wade into the Tuolumne River to check a rotary “screw-trap” as they count salmon migrating down the river to the Bay and beyond. File Modesto Bee
Fisheries technicians wade into the Tuolumne River to check a rotary “screw-trap” as they count salmon migrating down the river to the Bay and beyond. File Modesto Bee