Copper Triangular UFO hovers over field then disappears in 1994

I stepped outside to run around with the dog and I immediately saw a huge copper colored triangle shaped craft hovering over our field.  It was covering our field and part of the two fields nearby.  It was immense in side and made almost no noise.  I should preface that we had other weird UFO sightings in Caldwell but this is the only one where I actually saw something during the day.  I don't know why but both me and my dog ran towards it.  I have a fear of UFOs so this is very bizarre.  
When I reached the fence and was under it, in a blink it was completely gone and an almost instant feeling of terror came over me and I ran back to the house and told my brothers.  I told my mother and she told me never to tell anyone because they wouldn't believe me but that she too had seen UFOs in Caldwell.  
There were no lights that I saw or windows or any sort.  It was smooth and looked like brushed copper in color.
Witness indicates that the date of the sighting is approximate.  PD