i found one looked just like it , in the middle of a back yard in suberbia, went to the city and asked to check their sheets and see if it was even marked for them being it wasnt covered.. they said no.. not to mention i was there to do a cleanout on a home that was vacant for 10 yrs sold for only 2k in back taxs.. but anywho i cut down a tree that was old and dead but still strong, andf since it was there threw it in then raked the grass into it and knocked 4 bricks lower then the ground into it "which were only supported by the long log" 25 ft then piled dirt ontop of it.... now you know i really wanted to kick myself bveing that i could of used the industrial pump i used to empty the 4ft of water from the basement,then went down and searched it out... Oh well, i know where it is and only 2 others, being the city had no clue it was there, nor did they care...the same home had a sistern right up against the house it measured 6 ft by 13ft it was like a concrete bunker, i tore the top off and went into it but was never able to look around much but there were "alot " of bottles..and old ones at that.. if i had to say what this house reminded me of it would be a story i heard on here but never got finished...anyhow im babeling now so ill be quite.