Weißer Stein (Eifel) 2007 the University of Liège executed measurements and found a height of 692 m (TAW, Belgian standard). The altitude meter of Google Earth caused some doubt about Signal de Botrange (694 m TAW) as Belgium's highest point because its vertical reference EGM96 deviates a couple of meters from the German Normalnull and the Belgian TAW, thereby suggesting an altitude of 701 m for the Weißer Stein. An accurate control by the Belgian National Geographic Institute in 2010 showed the Weißer Stein to be at maximum 693.3 m TAW (=691 m NN), with which it differs by less than 1 m
Mount Greylock State Reservation offers overnight accommodations and meals during non-winter months. The reservation's of trails for hiking, mountain biking, back-country skiing, snowshoeing and snowmobiling include an section of the Appalachian National Scenic Trail and the historic Thunderbolt Ski Trail. Primitive camping is available for backpackers at either the Mount Greylock Campground or remote trailside backpacker shelters, all of which are only accessible by foot. Hunting is permitted in season. Mount Greylock State Reservation Mount Greylock State Reservation is public recreation and nature preservation area on and around Mount Greylock, the highest point in the state of Massachusetts. The park covers some in the