No one really knows what's causing one of Alaska's most prized catches to slowly disappear. All anyone can be sure of is that something is interfering with the annual return of Alaska's mightiest fish ...

Fish wheels, like the one in this 1903 photo along the Washougal River, floated on deeper rivers with salmon runs from 1866 until they were banned in 1934. Today, they are used to catch salmon for ...

NENANA, Alaska — This village of 600, an hour’s drive beyond Alaska’s northernmost city of Fairbanks, has long depended on the Tanana River. Along the banks, huge fish wheels use the river’s flow to ...