Driving with my son we thought we saw a helicopter hovering, it moved slowly and when we got closer towards it, it slowly moved near a tower with lights. i rolled down .I rolled down my window and a red light and looked up and it started moving again slowly towards route 97 north. as me and my son looked closer at the aircraft it was silent and in a triangle shape. we both looked at each other and said that's no a plane or a helicopter, no noise was coming from it, i then did a u turn and as we turned my son watched it move miles away within secs stopping a little past the highway. it changed shapes from a triangle to almost a circle with the white lights a 1 solid red light. then it just disappeared and we lost visual of it. my son went to record the ufo but it was to late.