LAUNCHING A BOAT ON THE WEST SIDE OF LAC VIEUX DESSERT IN VILAS COUNTY WI. I NOTICED TO THE NORTH EAST ABOVE THE LAKE SEVERAL JET CONTRAILS IN PERFECT CIRCLES. WITHIN MINUTES I SAW A LARGE AIRCRAFT FLYING FROM THE WEST TOWARDS THE EAST, THEN FLYING NORTH THE PLANE WAS A MILITARY AIRCRAFT OLIVE DRAB IN COLOR, THE PLANE HAD A CIRCULAR RADAR DOME ON THE TOP OF THE MIDDLE SECTION OF THE PLANE .I HAVE BEEN NEAR THIS TYPE OF AIRCRAFT AT AIRSHOWS BEING FAMILIAR WITH IT SIZE AND THE PLANE APPEARED TO THE SIZE OF A LEAR JET, I THOUGHT THE PLANE WOULD BE ABOUT 7 TO 10 MILES FROM ME.AS I WATCHED THE PLANE MAKE A CIRCLE, LEAVING A CONTRAIL, I NOTICED AS IT STARTED A SIMILAR PATH, THAT 8-10 OF IT'S LENGHTS AHEAD OF THE PLANE THE LIGHT CLOUD COVER WAS SPLITTING AS IF SOMETHING THE PLANE WAS FOLLOWING WAS CAUSING THE LIGHT CLOUDS TO OPEN IN A WEDGE.I WATCHED THE CLOUDS CONTINUE TO SPLIT OPEN AND THE PLANE CONTINUE FOLLOW IN THE OPEN PATH THE INVISABLE OBJECT MADE, THE PLANE CONTINUED MAKING THE CIRCLES AND DRIFTED NORTH UNTIL I LOST SIGHT OF IT BEHIND THE FOREST IN THE OTTAWA NATIONAL FOREST.I COULD SEE THE PLANE CLEARLY,I WORE SUGLASSES, I TOOK THEM OFF, I USED A SMALL BINOCULARS, BUT WHAT EVER WAS SPLITTING THE CLOUDS AHEAD OF THE RADAR PLANE WAS INVISABLE.