The San Joaquin River, California's second-longest, used to teem with Chinook salmon that traveled from the San Francisco Bay to the Fresno area to spawn. That was before the Friant Dam blocked their way, about 60 years ago. Now, biologists are reintroducing the fish. Reporter: Alice Daniel
Please ensure that all comments adhere to our community guidelines. We reserve the right to edit or remove comments that do not follow these guidelines.