MetroNorth has wasted no time in unearthing an old passage under the Beacon Line railroad tracks. As reported here not long ago, railroad engineers, city officials, and representatives from Scenic Hudson went to reconfirm the tunnel’s existence in December of 2011. Long-time Beacon resident David Miller, 84, led the expedition. Over ten years earlier, Miller had been building the Madame Brett trail when a Cornell engineer working on the project looked at an aerial map and surmised there must have been such a passage. David confirmed that he would use the tunnel as a short-cut from his house on Tioranda Avenue to the swimming spots on Denning’s Point. According to David, the passage was originally built for small mining cars hauling clay from the claypits (now a sealed-over city dump south of the water treatment plant) to the brickworks on the other side of the Beacon Line tracks.