Anglers are lining the banks of the Yellowstone and Missouri Rivers near Williston these days.
It's the annual snagging season for paddlefish in the river system.
The season began May First, and the Game and Fish Department limits the catch to one thousand fish each year.
In most cases, the fish are brought to a trailer where the eggs are removed and the fish is cleaned for the angler.
The eggs are sold as caviar, with the proceeds benefiting the Williston Chamber of Commerce and Friends of Fort Union
The paddlefish can weigh over 100 pounds and offer a major challenge for men and women trying to reel them in.
And a worker at the weigh-in station told us yesterday there are some big ones coming in this year.
(Chas Brunson, Paddlefish Worker) "Fishing's going great. We've caught around 275 fish all big mamas - bigger fish, not a lot of immature males or females but big males and big females."
The paddlefish season will end May 31st, or when one thousand of the fish have been caught.