Shows up on Google Earth at: N 42 57.236 W 079 02.552
The foundational ruins of the Old Winger family Farmstead in Stevensville. There is actually quite a bit of old brickwork to see at this location, including multi-room foundations and several silos. No neighbours anywhere in the area, so you can explore at will without any chance of interruption. These ruins show up quite prominently on Google Earth, and yet are completely blocked from view driving down the road due to summer foliage.
Check the gallery for a historic photo of this property burning down in 1971.