Caltrans installs the mini-culvert undercrossing for Yosemite toads along State Route 108 in Mono County. Credit: Kris Bason/Caltrans Each spring deep in the Sierra Nevada, Yosemite toads roam the alpine meadows in search of a mate. Biologists have…
Caltrans installs the mini-culvert undercrossing for Yosemite toads along State Route 108 in Mono County. Credit: Kris Bason/Caltrans Each spring deep in the Sierra Nevada, Yosemite toads roam the alpine meadows in search of a mate. Biologists have…