Surecatch -
A number of the upper Columbia tribes also relied on lampreys for food. They are amadromous fish the bring with them good amount of fats. As spring spawners they were available to local tribes after a hard winter thus would have been looked forward to as a good change in their diet. Runs to some of those rivers were reported to have number in the 10,000s with few seen today.

Tight lines
Smalma