Fishing in a pond, I believe was call Optimus Lake that has long since been covered over, in Highland, Indiana, just off of Indianapolis BLVD is where I had seen it.

The saucer looked of seamless gold/bronze and had portholes a third the way up its structure.  It was at an angle leaning towards me nestled in between 3 to 4 tree tops as cover to hide from the main road.  I did not see the bottom.  
My family ventured off to fish further down and I felt a need to look up and over my shoulder when I had seen it.  I do not know if it was fear or embarrassment, because I had just finished peeing in the lake in my youth, but I looked away as if it was just another object in my life as if to say so what.  
I have never shared this story but I cannot seem to get the image out of my mind.  I did look back up eventually but it was gone and I never heard a thing to cause me to look up.  It was as if I somehow knew it was there.
Witness indicates that the date of the sighting is approximate.  PD