It looks like that picture of sad Megan by the trailer may not be when they get their morning departure times. I think Green River Park is actually green. This shot is kind of arid. The look she has could be from having mechanical trouble with the trailer(like a flat tire). And so they have to stop and lose their lead.
Both the G's and the B's detour shots seem to be after 1 pm. That's when the sun lines up with Gemini Bridges eastern face. It's kind of overcast but there is a hint that sun is coming from an azimuth beyond the one it had at 1:00 pm. For the Linzes, they are rappelling before 1 pm because we see the light on the eastern face of the bridge.
So I suspect that the Linzes do get a good morning departure time but are delayed on the way to Bart's place. This allows the Weasels (also with the good departure time) to get to the Yield first.
And they yield the Linzes.
from Hysterias clues
O.K. - Here's the complete itinerary. (This is exactly how the clues would read when they open them.)
Pit Start - Lake Powell
Drive yourselves to Monument Valley, Utah. Once there search John Ford's Point for your next clue.
Additional Info:
The Full name of "Monument Valley" is Monument Valley Navajo Tribal Park
IMPORTANT: Once you are on tribal lands you MUST respect all posted speed limits.
Driving regulations are strictly enforced and you may NOT pass other cars.When you arrive at your destination, you must park your car in the marked parking area.
At John Ford's Point
Take a helicopter ride to the summit of Elephant Butte to retrieve your next clue.
Maybe just Maybe the Linz clan get a penalty for passing the Weasels ?? or pulled over ]//{ if this is the tribal lands ??