He enters via the center and then stays in the Western portion the rest of the time, as far as I can tell. A few highlights:
0:51 Rusty Car Trail
1:46 Huge airplane goes by
2:58 Mud avoidance side path #1
3:05 Mud avoidance side path #2
I wonder if he's one of the three guys I see there a lot. They're usually with a black dog, but I can't remember what breed that dog is.