I am a small business owner in lead, south dakota. at 10:02 pm i was returning from making a delivery and was returning to town on highway 14a going northeast into lead. i was about one mile from town well inside the city limits. ahead of me, over a group of small buildings located in a steep sided roadway, i observed three round lights, one very bright white with two less bright blue-white lights float in from my left hover over the road and set down and appear to land on the highway. the lights were configured in an upright y configuration with the blue-white lights at the top and the bright white light at the bottom, on or slightly above the highway. i was an estimated three hundred feet from the object (lights) when i first observed it and it was drifting down over the buildings just about to land. i reduced my speed from 35 mph down to 15 mph and rolled to within two hundred feet or less from the lights. the object remained motionless for approximately three to five seconds and then rose above the roadway and rapidly flew towards my vehicle clearing my pickup truck by no more than twenty feet directly over me. it rose up and left the highway cut area and disappeared to the south behind me. it was too large to be a drone. the distance between the round lights appeared to be between 25 and 30 feet. the lights were around three feet in diameter. there was no sound, no odor, and no other affects. no other traffic or people were present. the object(s) exhibited a leaf like motion when floating down and a similar motion when leaving the ground. no changes in brightness were observed. the temperature was 25 degrees fahrenheit and visibility clear.