Information - Map of site with tunnel!

[Dv18]

Anyone here know how to read a site map?
I know where the entry is but i dont know if its conected to the exit. The lines split and i cant tell if its drainage or the tunnel continues all the way out. The entry is big enough to drive down but the lines go weird.
Planing on going this weekend to explore so and help would be kind thanks in advance
Cant seem to upload a pic of the map will try do it in a second post

 

[Dv18]

The map

 

[chills]

Still no maps showing on this post but I’m sure someone will be able to offer their advice.

 

[Seffy]

The map

Are you trying to upload directly to the forum or use a link/code? We can't see anything at present