I found those two graves , is it related to any lore or just a random decoration ? ( just curious )

So I found two graves behind the Sky raiders base , at 1449 178 -4184 , and I asked myself if this was related to any Sky raiders lore or any lore at all ? I doubt this is just random decoration , or is it ?

 

just a decoration but it might be related to the lore

 

Their lore significance is likely part of an isolated story. They seem rather old, the build looks like it was made with the original gavel release with how... unpleasant it is, so whatever significance they might've had is probably gone.