Orange spheres moving across the night sky that look like fire.We were camping at Beacon Rock State Park in the Washington Columbia Gorge when we saw fireball appearing spheres moving across the sky at about the level that a small plane would fly.Initially there were five of the fireballs in a formation. I believe there were a row of three and then a row of two. After that there were about a dozen more orange spheres in single file spaced far apart moving west to east. We kept thinking that the display was over and then another fireball would pop into view from the western sky. They were quite bright and moving faster than a small plane would. They were gaining elevation at a low angle. They would eventually disappear. It is unclear whether they entered the cloudbank and were just no longer visible or perhaps burned out.