A blue round light that had a blue tail and moved extreamly fast.it was a round blue shape that went across the top of the mtn. for about 5 miles it had a blue stream behind it that looked like it was about 100 yards long in 3 seconds in 5 miles I can not explain it. It went from west to east faster than anything I ever saw. Bear Valley joins Short mtn. short is about 2 1/2 miles wide on top . When I first saw it , it was standing still then when I told my buddies to look it streaked across the top of Bear Vally Mtn. It was the first day of hunting season and I know more people saw it other than us three.