Black and beige crft, visible for about 10 seconds as it crossed over the hwy from west to east.I was looking at the tress along the Alaska Hwy on my left. I was looking up and ahead some distance. I noticed a craft moving slowly down the side of the wooded hill. The craft was black with beige markings, about the size of an automobile. It was not very far in front of me. It crossed over the Alaska Hwy and descended down the hill into the woods on my right. No lights.