Sahara Phone [hint][solution]

In the picture I circled an abandoned bus somewhere in the Sahara desert.

What's special about this bus, is that someone voluntarily left a mobile phone in it, with precise instructions. But it has yet to be found.
Is it on the roofs? yes it is... wait no, if we are talking about the phone I believe it's somewhere inside.



GE Shot 

I don't know what this story is about but I got the place

It's my understanding that you found the place by following one of the few railways in Sahara, that's fine 
If you want to know more about the phone stuff, or if you want to guess the place by using that hint, check the spoiler:

SPOILER: Click to show

In the puzzle description I said "Is it on the roofs? yes it is"
Have a look at ontheroofs on Google, and see if they ever went to Sahara 

Thanks for hint!

So glad this came with a clue 

Solution:

SPOILER: Click to show

Ontheroofs is a parkour / urban climbing crew. They did a video called Sahara Freight where they ride a train through the Sahara Desert. At the end they mention they left a phone inside an abandoned bus, and whoever finds the phone and messages the only number saved on it, will win a free adventure with the crew. The location, mentioned in the video, is at theese coordinates in the Mauritanian Desert: 22°42'03.7"N 12°27'31.9"W

Who know if someone found the phone yet!