This rock placed, fully cemented (inside & out) water storage tank about ~75 yards behind the cabin and visible on Google Earth/Satellite View was very interesting. The circular wall is about 7.5ft high and about 25 feet in diameter. The circular wall is at least 18" thick and the entire inner tank was plastered smooth on walls & floor areas. I was unable to juggle my body and the camera at the same time climbing up and viewing from the top in, or I would have tried for a pic or two.