Well with your help I found the correct coordinate system, and can now use this website to convert: Now I can find the terrain on Google Maps. And ...

@geeoddmike - Got it! I used Thanks for the help!  

@geeoddmike - You still have trouble seeing images on this forum? A pair of coordinates could be: 343825.10729688158.7381 The tool you sent me requ...

@norman-oklahoma - Downloaded the free version and got the data points. Thanks!  

@geeoddmike - Thanks!  

@norman-oklahoma - Thanks, I'll give that free version a try. I could open the file in a free online DWG viewer of Autodesk. But it did not contain t...

Additional update - in an open question they answered that the coordinates are in UTM, Sirgas 2000. What ever that may mean 🙂

Hey all, I received a DWG drawing from these guys. ?ÿ A few questions: Does any of you have the software to open this file type? Can any of you ...

Hi all, I am amazed by your swift replies! Thanks a lot. OK, so I should get the coordinates in SIRGAS 2000 format? Well...to communicate with these ...

@geeoddmike - Very close! How did you not end up in the Atlantic? 🙂 But not exactly. The terrain is here: So I am a lot closer to the coast and...

@geeoddmike - Thanks! A tool like that is exactly what I was looking for. Yes, I think you are right about the 23S time zone. The town in which the t...

@loyal - Thanks so much! My terrain is exactly here: So as for the distance to the equator you definitely may be right.  

@norman-oklahoma - I am originally from Holland, so the exact systems in use within Brazil I am not sure about either. Seeing the follow ups, I think ...