We saw it from our backyard as we were noticing the planes landing at DIA must be in a landing pattern taking them over the Golden/Wheat Ridge area tonight. It was while looking skyward we noticed the dot. It was a black dot that just floated; looked like it was hovering or being blown on wind currents. It looked to be VERY high in the sky. We couldn't see any more detail than "dot" until we got the binoculars out.(Regrettably, our point and shoot digital camera didn't get a good shot of it at all). Then we ran and got the neighbors and they looked at it with the binoculars and they also thought it looked like a big turtle (round body, with protruding 'head'). We concurred. It wasn't frightening, just odd, truly an unidentified flying object...a giant turtle balloon????? It finally floated westward toward the mountains until we lost sight of it on the horizon over the roof of our neighbors house. We were just glad they got to see it too!