Broad daylight/Low against Mountain/Both traveling same direction together/Flash of silver then disappeared/

I wanted to share an experience I had on 4/23/21. I was driving to Lake Alamo, AZ , in my truck pulling my 5th wheel, very narrow road so I could not pull over. It is a very remote area. And this happened in broad daylight. So here is a drawing I did very soon after I saw this. I thought at first these were a type of plane? But then saw that they were both white in color. Both crafts were flying in unison same direction(left to right), the rear craft started to get closer to the lead craft, I then saw the rear craft flash silver (like how a mirror flashes) I looked at the road quickly and back (as I was driving) and then they were no longer there. I kept looking everywhere and there was no way they could go behind the mountain, like a pass through. They were flying low against mountain. I drew this right after I parked my rig. I drew the account as soon as I could stop safely at RV sight, maybe 30 minutes.