Alan - I posted this in a previous UFO thread:

But here's a thing (a true one too). This summer my wife and I travelled across the Atlantic and spend three weeks in the American West. The first week was spent in the field digging for dinosaurs in the badlands of the Hell Creek formation of North Dakota and Montana. On our last day in the field our two-car convoy was headed north on a highway in Montana close to the ND border when a flash of movement on the far horizon caught my eye. I watched a sleek object shoot up at an incredible speed and on a trajectory that would be impossible for a fixed wing aircraft. I pointed it out to the other four people in the car and as one of the chaps commented, it "was haulin' ". It might have been a missile or something but it was really shifting, leaving a sharp trail through the clouds but no trail in the blue sky. I can honestly say I've never seen anything like it in my life, and I've lived near airports all my life.