Walking through my front living room looking out across to the north, i noticed (saw) a black, long cigar-shaped object hovering just above a mountain peak about 15 miles away from where i live. i then noticed it slowly and carefully moved to the right (towards the ne until it went behind an adjacent mountain. to my surprise, after looking away for a moment thinking i'd never see it again, it came back hovering over the first mountain and then started moving again carefully between the two mountains. at this point, i took my cell phone and started to take pictures of this object. it went behind the same adjacent mountain again only to return over the first mountain. it then descended down in front of the first mountain then ascended back up above the top of the mountain. i continued taking pictures. at one point, as it was hovering between the two mountains, it suddenly and breaking high speed, shot at a steep angle behind the adjacent mountain again. very fast! it then very slowly hovered back towards the first mountain and hovered above the apex of the mountain again this time ascending higher than before. it hovered then slowly kept ascending higher. it started to fly away towards the north until it vanishedwhaze of the clouds. i was astonished how long it stayed around and kept coming back in sight for about 30 mins. i took solid pictures of this object on my phone camera. note: when viewing the pictures, please enlarge the picture and view above and between the mountains. you will see the object. thanks!