The object was approximately 30 feet in diameter; it appeared as a round sphere with yellow and orange pointed shafts of light eminating from a bright white center;the spheres of light moved around the white center rapidly in an eratic movement. The object was aopproximately 30 to 120 feet off the ground ; it moved in a fallen leaf pattern coming close to the ground and then going higher. It looked like it was searching for something over an area of about 300 yards. It traveled back and forth, up and down, over the area for about two hours until a little after 4:00 am. It was approximately 150 yards away from me, but then started to move closer to me as it continued to move back and forth, up and down. When it got about 100 yards away from me I heard a noise coming from it that I had neaver heard before. It sounded like a variable tone hissing sound which caused me concern for my well being. At that point I hid in the sage brush, looking up occasionally to observe it, until the object suddenly dissapeared about 4:00 am.((NUFORC Note: Date of the event may be approximate. PD))