MEET the Sherp All Terrain Vehicle – an amphibious vehicle that can tear through ice, mud and deep water. The all-terrain ATV ...

A controversial incident on Montana's Blackfoot River is causing an outcry from local anglers and conservationists, after videos surfaced this week showing an amphibious off-road vehicle driving down ...

Fly fishermen were recently stunned to witness a Sherp ATV driving through one of Montana's prized trout rivers, and later found that the company operating the vehicle didn't have a permit to do so.