While driving home on highway 66east bound in evening i noticed a large bright light above the hill overlooking the foundry. i wonder when they put it up and how big and brite it was. i drove past the light and pulled in a parking lot on the right side about a block away. i turned off my truck and got out. i saw the light above the hill and then it went out. a few minutes later i looked up and above me a bluish light came on slowly and then slowly went dark. then a pinkish red light came on then went slowly out. this went on and off as it slowly to the west. no sound and the lights were about 100ft above me.