I was helping an associate, person a, with farming chores at a piece of land ne of town and when we were done moving bales at around 3pm and began to head towards home. i rode with my another associate, person b, and as we were about 1-2 miles from the local highway, the road we were on angled slightly to the sw, so person b was facing straight ahead or more to the south and did not see the object at first. i noticed it because it was lower than any cloud or plane, was moving faster than a cloud or plan, and made no noise like a cloud or plane. when the object that came into view, it was a grey/silver egg/disk shaped object as it came into view from the tree line about 1-2 miles away at a height of 500 feet moving from the nw to ne on a fixed path that was also nw of my present location. its focal point of the craft remained fixed on a line of trajectory as the craft its self rotated much like a coin being spun. it was a partly cloudy day with clouds at higher altitudes than 1500 to 2000 feet, with more blue sky than clouds. the ship made no noise, did not change course, and then broke view when it moved off in the distance behind another tree line. while there is a local airport near the town, the object was moving too fast to land, too low at the present distance to land without hitting power lines, buildings and etc.; and was moving in too sharp off path to try and land with the runway that faces n/s. additionally, years prior, i have heard sonic booms from military jets that bomb at a "nearby" targeting range. however, sonic booms had been absent from the area for roughly 2 years prior to the reported event, and to this day, no sonic booms have been reported by associates or myself.