Find the container covered in tarp, and mark it

How do you complete "Find the container covered in tarp, and mark it"?

This is step 5 of 5 in On The Map, given by Lance. It is completed on The Spaceport.

• On The Map
• The Spaceport

What are the other objectives in On The Map?

On The Map has 5 objectives in total: Head to where the Fuel Lines snapped, and transmit your location, Head to the antenna near the Fuel Control, and transmit your location, Head to the cactus patch in the wall breach, and transmit your location, Transmit your location from the roof of the Container Storage building and Find the container covered in tarp, and mark it.