This is a track made by Triforce 91. If you e-mail me at barkforce@hotmail.com I will send you the story behind it. It is a long (2:15 if your fast) track that is located in the heart of Alaska. It took approximately 15 hours over 3 days with Traxx (Thanks Bill) to make. Tx4 stands for Truck Torture Test Track. 

Triforce 91
barkforce@hotmail.com
www.geocities.com/MotorCity/Speedway/6112