The order comes in the wake of the nonnative species being caught in the Gardner River at its confluence with the Yellowstone just outside of Yellowstone National Park.
There's no fury quite like a grizzly that has taken possession of an elk carcass when it's threatened by another. New video shows two of these predators facing off in the Yellowstone River.
Flooding in 2011 scoured the river bottom and exposed the buried pipeline, causing it to break along a stretch of river popular with anglers and boaters.
On Aug. 19, FWP closed all recreation on the Yellowstone River and its tributaries from Gardiner to Laurel after staff counted more than 4,000 dead whitefish.
A legal clash over water rights on the arid Northern Plains goes to trial this week as attorneys for Montana press their case that Wyoming farmers and oil and gas companies are sucking too much water from tributaries of the Yellowstone River.