God I love the internet:
Apparently, that picture is from a Warn ad.
"Okay P.I. retards! Here's what I found out:
I first contacted John Rush (owner of John's 4x4) in Boulder, CO. He actually has this exact Warn poster on his showroom floor. Here is what he said:
"Craig,
I do not know where this was taken but I do know that it is a "cropped"
picture. The trail was wider than what the picture shows.
John Rush"
===
I also contacted Warn, and here is what they said:
"Craig,
That was not an actual trail rather than just crafty placement of a vehicle on the side of a forest service road up in the North Cascades (Washington) assisted by some photo editing.
Todd Wright
Warn Technical Service Representative"