location on rural rd, close to town, over power lines only approx. 5 ft, ultra modern, no propellor, no way to stay up, no engine thrust, deep humming sound, ufo, like in science movies, 15 to 20 ft lgth. by 7 to 8 ft. width, 6 or 7 ft ht, maybe 8ft? super ultra modern even for 2017, and we saw it in summer of 1968. steady moving over power lines, no windows, so close we could have hit it with rock easily. advanced whoever was in it??? no abductions...Feeling of unbelief and still thinking about it 49 years after seeing it in summer of 1968. we lost sight of it as it continued to very slowly go over power lines...I dont know why we did not follow ??? it just stayed the course over power lines headed west bound. whoever certainly has knowledge we do not have to help in my opinion, but do not desire to connect with us or they would. surely they saw us only 15 or 20 ft from machine...Angels dont need machines to ride in i would not believe, but these machines are not from our planet. never seen anything that modern except on tv or in movies. in my opinion some other planet exploring, but who knows???