The 307 Bison Stampede is a 14+ age mountain obstacle course that takes place at Hogadon Basin Ski Area - Casper, WY on Saturday August 10th 2024. The 307 Bison Run Obstacle Race is approximately 3.1 miles in length, features multiple obstacles throughout the course. This race is geared for all all fitness levels, making it a great event for the seasoned Obstacle Racer as well as beginner looking for a good challenge