Early April 2006 the water level in the Harriman Reservoir was very low. This low water exposed what remains of the ruins of the old Mountain Mills trestle. This was visible from Route 9 in Wilmington VT. There are plenty of old Hoosac Tunnel & Wilmington RR relics to be found on the ruins which appear as a peninsula when the water is low. This trestle was once much taller (as tall as the banks). Nearly 80 years of erosion has significantly shortened its height. It appears that the washout probably occurred on the west side as that is where the most erosion has occurred.