I know its a little late to report this but my wife,daughter and myself were witness to a UFO encounter whilst canoeing on Canyon lake AZ on November 5 2017 . At approximately 1430 hours we spotted two spherical rotating objects over the lake above our heads. They were silver and dull grey in color rotating on thier own axis and about each other at an estimated height of 2000 ft. We watched this for several minutes. They emitted no sound and had no visible means of propulsion . They were then joined by another sphere traveling at some speed from a westerly direction which stopped abruptly and hovered in close proximity of the others also emitting no sound. They continued to hover and then silently and slowly moved away in the direction of Roosevelt Dam in a triangular formation. We were puzzled as to the event and as to what they were. Approximately 10 minutes after the objects left a helecopter flew low over the lake and appeared to be scouting the area an unusulal event in itself too. I have been around aircraft all my life these were not anything the constituted known aircraft in my experience I attempted to take photographs and a video needles to say at that height faint pixels is all I got. Never the less it was a powerful sighting that intrigues me to this day.