3/5/05 Snowmobiling 9:30 p.m. on northern Mn. lake, several lights appeared above trees, blinking off and on, not moving, 45 min.Two males snowmobiling out on a northern Minnesota lake on March 5th around 9:30 p.m. when they spotted lights above the trees; above some cabins. Four lights in a row, 3 different lights blinking on & off, and different 2 lights blinking. Lake is 1 and 1/2 miles long, 3/4 mile wide. The craft was down on one end of lake and large enough to block a television tower light which has never been out in 40 years. They went and got two more friends, one male and one female. Craft was still there when they snowmobiled back onto the lake. One of the males said that he could see that there was metal or a shape reflected as the lights blinked off and on. It stayed in the same position and did not move. They did comment that an airplane had flown over during the time they observed it. They left before the craft left because they were worried about the power on there machines going out. It was clear to all that these were lights not reflections. They have lived on this lake for many years and commented that they have never seen anything like this before.