Moved very slow left to right then stopped mid air for about 30 seconds then zig zagged up and out of sight in split second. We were camping on a mountain top and girlfriend screamed and pointed up at it ran toward me. We watched it hover with no sound, they were huge! With a fluorescent orange color, two triangles. They froze mid air for about 30 seconds then in a split second zig zagged upward and out of sight without a sound. We were stunned and could not believe what we saw much less the speed in which it moved. It did not blink, it was solid in color bright fluorescent redish orange.