VERY LARGE GLOWING OBJECT HOVERED TO THE WEST OF THE SALT LAKE DISAPERING AFTER ABOUT 3 MINMYSELF AND A FREIND WHO WAS WITH ME AT THE TIME WERE TRAVELING WEST FROM LOGAN UT TO BRIGHAM CITY THROUGH THE CANYON. AT THE MOUTH OF THE CANYON ON THE WEST SIDE WE CAME AROUND A CORNER WHERE WE COULD SEE ACROSS THE LAKE. AS SOON AS WE WERE ABLE TO SEE THE LAKE WE ALSO NOTICED A VERY LARGE OBJECT HOVERING IN THE AIR WITHOUT SAYING ANYTHING I STOPED THE CAR AND TURNED OUT THE LIGHTS AND WE WERE BOTH AWARE THAT THE OTHER WAS SEEING THE SAME THING WITHOUT TALKING TO EACH OTHER. WHAT WE SAW WAS A VERY LARGE OBJECT THAT WAS GLOWING ORANGE IN COLOR WHICH WAS APX. ABOUT 1/2 LONG AND APX. 100-200 FEET TALL AS WE WERE WATCHING THE OBJECT HOVERED FOR ABOUT ABOUT 2 MIN THEN SLOWLY AND WITH CONTROL LOST ALTITUDE UNTIL IT WAS GONE BEHIND THE MOUNTIANS TO THE WEST OF THE SALT LAKE AND ALL THAT WAS LEFT TO SEE WAS THE AORA OF THE GLOW FROM THE OBJECT FOR ANOTHER MIN OR SO THEN WAS COMPLETLY GONE. AT THE DISTANCE I WAS AT FROM THIS OBJECT AND THE SIZE IT APPEARED I ESTIMATED IT TO BE ABOUT 1/2 TO 3/4 OF A MILE LONG.