Went through my files and found some literature from him and have confirmed the Yamaha Jim to be correct. Site used to be snowtours.com
Been on 1 tour with NE Bob as a noob and had no issues with his guidance. He offered a good tour and taught me alot during the ride. Had a great time...up to the point where I blew my engine. Luckily, was able to get back to the hotel after a 90 mile tow through the pipeline trail. Good times.
Guess I could learn something from his 4x4 riding school...